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    • Posted by Priyanka Vaghera 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ayush Kumar 4 years, 10 months ago

    Cot^2 theta + 1 = cosec^2 theta (3/x)^2 + 1 = (3x)^2 9/x^2 + 1= 9x^2 9/x^2 - 9x^2 = -1 9(1/x^2 - x^2) = -1 3(1/x^2 - x^2) = -1/3 Therefore, 3(x^2 - 1/x^2) = 1/3

    1Thank You

    ANSWER

    • Posted by Apeksha Apeksha 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Itachi Uchiha ? 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Itachi Uchiha ? 4 years, 10 months ago

    Thnku (^£^) ......

    1Thank You

    : (ᵔᴥᵔ) ???? (ᵔᴥᵔ) 4 years, 10 months ago

    Ohhh gr8?

    1Thank You

    Nasir Ul Haq 4 years, 10 months ago

    .................

    2Thank You

    Itachi Uchiha ? 4 years, 10 months ago

    But no I will prove it at 2:30 pm get ready..........

    5Thank You

    Itachi Uchiha ? 4 years, 10 months ago

    Someone said it is done by mistake ???.....

    3Thank You

    ANSWER

    • Posted by Sahil Jonnalagadda 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Bobby Dubey 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Raj Vardhan Singh 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Kavita Yadav 4 years, 10 months ago

    To convert the given trigonometric ratios in terms of cot functions, use trigonometric formulas We know that, cosec2A – cot2A = 1 cosec2A = 1 + cot2A Since cosec function is the inverse of sin function, it is written as 1/sin2A = 1 + cot2A Now, rearrange the terms, it becomes sin2A = 1/(1+cot2A) Now, take square roots on both sides, we get sin A = ±1/(√(1+cot2A) The above equation defines the sin function in terms of cot function Now, to express sec function in terms of cot function, use this formula sin2A = 1/ (1+cot2A) Now, represent the sin function as cos function 1 – cos2A = 1/ (1+cot2A) Rearrange the terms, cos2A = 1 – 1/(1+cot2A) ⇒cos2A = (1-1+cot2A)/(1+cot2A) Since sec function is the inverse of cos function, ⇒ 1/sec2A = cot2A/(1+cot2A) Take the reciprocal and square roots on both sides, we get ⇒ sec A = ±√ (1+cot2A)/cotA Now, to express tan function in terms of cot function tan A = sin A/cos A and cot A = cos A/sin A Since cot function is the inverse of tan function, it is rewritten as tan A = 1/cot A

    2Thank You

    ANSWER

    • Posted by Uttam Singh Gurjar 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ayushi Rai 4 years, 10 months ago

    17

    0Thank You

    ANSWER

    • Posted by G.Mohammed Fayaz✨ Fz Fayaz 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    G.Mohammed Fayaz✨ Fz Fayaz 4 years, 6 months ago

    Yes

    0Thank You

    ANSWER

    • Posted by Manisha Isha 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Om Prakash Tiwari 4 years, 2 months ago

    1

    3Thank You

    Sanjay Kumar 4 years, 6 months ago

    2 and 1

    1Thank You

    ANSWER

    • Posted by Treesa Joseph 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Gowtham Kotam 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Gowtham Kotam 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Subhalaxmi P 4 years, 10 months ago

    Middle term factorization

    0Thank You

    ANSWER

    • Posted by Gowtham Kotam 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Vidya Mudaraddi 4 years, 10 months ago

    2x²+3x+2=0 2x²+4x-1x+2=0 2x(x+2)-1(x+2)=0 (X+2) (2x-1)=0 X=-2 & x=1/2

    0Thank You

    Subhalaxmi P 4 years, 10 months ago

    X^2+x+2x+2 x(x+1)+2(x+1) (x+1)(x+2) x = -1,-2

    1Thank You

    ANSWER

    • Posted by Namrata Jindal 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Vivek Gk 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Dhawanpreet Kaur 4 years, 10 months ago

    Cos A =4/5 so, b/h=4/5 , b =4, h=5 and then tan A =3/4 ,cot A =4/3

    0Thank You

    A . 4 years, 10 months ago

    TanA=3/4 and cotA=4/3

    0Thank You

    Yogita Ingle 4 years, 10 months ago

    cos A = 4/5

    sin A =√1 - cos2 A = √1 - (4/5)2 = √1 - 16/25 =√(25-16)/25 = √9/25 = 3/5

    tan A = sinA/cos A = 3/4

    ans cot A = cos A /sinA = 4/3

    0Thank You

    ANSWER

    • Posted by Vivek Gk 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Dhawanpreet Kaur 4 years, 10 months ago

    P upon H U should learn the table P B P H H B And now see carefully Up to down each line first is P upon H is SIN Q where q is theta B upon H is cos Q and P upon B is tan q

    1Thank You

    Vaishnavi Gupta 4 years, 10 months ago

    P/h

    0Thank You

    Varista Gupta 4 years, 10 months ago

    Perpendicular/hypothesis

    0Thank You

    Vaishnavi Singh 4 years, 10 months ago

    p/h

    0Thank You

    ANSWER

    • Posted by Allu Arjun 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Vaishnavi Gupta 4 years, 10 months ago

    Chapter?????

    0Thank You

    Prince Yadav 4 years, 10 months ago

    Chapter ???????

    0Thank You

    ANSWER

    • Posted by Allu Arjun 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Vaishnavi Gupta 4 years, 10 months ago

    Ji chapter btane ka kasht kree

    0Thank You

    Prince Yadav 4 years, 10 months ago

    Chapter ?????

    0Thank You

    ANSWER

    • Posted by Aa A 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Sakshi Jagtap 4 years, 10 months ago

    ohh nice Atul....from where uhh have taken this?

    0Thank You

    Atul Kumar 4 years, 10 months ago

    CHAPTER TOPICS REMOVED ?UNIT I-NUMBER SYSTEMS 〰️ ?REAL NUMBERS ➡️? Euclid’s division lemma ?UNIT II-ALGEBRA 〰️ ?POLYNOMIALS ➡️?Statement and simple problems on division algorithm for polynomials with real coefficients. ?PAIR OF LINEAR EQUATIONS IN TWO VARIABLES ➡️ ?cross multiplication method ?QUADRATIC EQUATIONS ➡️ ?Situational problems based on equations reducible to quadratic equations ?ARITHMETIC PROGRESSIONS ➡️ ?Application in solving daily life problems based on sum to n terms ?UNIT III-COORDINATE GEOMETRY 〰️ ?COORDINATE GEOMETRY ➡️ ? Area of a triangle. ?UNIT IV-GEOMETRY 〰️ ?TRIANGLES➡️Proof of the following theorems are deleted ?The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. ?In a triangle, if the square on one side is equal to sum of the squares on the other two sides, the angle opposite to the first side is a right angle. ?CIRCLES ➡️No deletion ?CONSTRUCTIONS ➡️Construction of a triangle similar to a given triangle. ?UNIT V- TRIGONOMETRY 〰️ ?INTRODUCTION TO TRIGONOMETRY ➡️ ?motivate the ratios whichever are defined at 0o and 90o TRIGONOMETRIC IDENTITIES➡️ ?Trigonometric ratios of complementary angles. ?HEIGHTS AND DISTANCES➡️No deletion ?UNIT VI-MENSURATION 〰️ ?AREAS RELATED TO CIRCLES ➡️ Problems on central angle of 120° ?SURFACE AREAS AND VOLUMES ➡️ Frustum of a cone. ?UNIT VI-STATISTICS & PROBABILITY 〰️ ?STATISTICS ➡️?Step deviation Method for finding the mean ?Cumulative Frequency graph ?PROBABILITY➡️ No deletion

    14Thank You

    ANSWER

    • Posted by Nandini Kolli 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Aman Singh 4 years, 3 months ago

    Thanks

    3Thank You

    Anjali Bisht 4 years, 10 months ago

    Question:- (7-2√3) Solution:- Let us assume that (7-2√3) is a rational number. Therefore we can write in the form of p/q. Where p and q are co- prime numbers. 7-2√3=p/q 7-p/q=2√3 7q-p/q=2√3 7q-p/2q=√3 √3=7q-p/2q Since, we know that √3 is an irrational number . Hence our assumption is wrong 7q-p/q or 7-2√3 is an irrational number.. Hence Proved..... I hope now your doubt is clear??

    18Thank You

    ANSWER

    • Posted by K. Asritha 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Varun Soni 4 years, 10 months ago

    https://images.app.goo.gl/eJK1UnZKtYo2NaEA6

    0Thank You

    ANSWER

    • Posted by ?Isha .B 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Xyz Student 4 years, 10 months ago

    Solution: Given AB=6 cm, BC=4 m, QR=28 m. To find:PQ. In ∆ABC and ∆PQR. Angle B= Angle Q= 90°[ Vertical]. Angle ACB= Angle PRQ [same angle on both, from sum]. By AA Criterion ∆ABC ∆PQR Corresponding sides of similar triangles are in proportion AB/PQ = BC/QR = 6/PQ = 4/28. PQ = (28*6)/4 = 42 cm. Height of tower = 42m

    1Thank You

    ?Isha .B 4 years, 10 months ago

    Please...Explain... The Method...

    0Thank You

    Atul Kumar 4 years, 10 months ago

    42meter

    1Thank You

    Akhya Sahay 4 years, 10 months ago

    42 m

    3Thank You

    ANSWER

    • Posted by Divyansh Vashishtha 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Varun Soni 4 years, 10 months ago

    Trigonometry formula Sin=Oppo/hypo Cos=adj/hypo Tan=Oppo/adj Cosec=hypo/Oppo Sec=Hypo/adj Cot=Adj/Oppo Sin=1/cosec Cos=1/sec Tan= sin/cos Cot= cos

    1Thank You

    Akhilesh Achant 4 years, 10 months ago

    Trigonometry formula Sin=Oppo/hypo Cos=adj/hypo Tan=Oppo/adj Cosec=hypo/Oppo Sec=Hypo/adj Cot=Adj/Oppo Sin=1/cosec Cos=1/sec Tan= sin/cos Cot= cos/sin

    2Thank You

    ANSWER

    • Posted by Nidhi Kumari 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Esha Kendhe 4 years, 10 months ago

    a consecutive number is the one which follows one another without gaps Example 1,2,3...

    0Thank You

    ANSWER

    • Posted by Raj Singh 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Munmun Naresh 4 years, 10 months ago

    2πrh

    0Thank You

    Nisha???????? Bharti 4 years, 10 months ago

    2πrh

    0Thank You

    Raj Singh 4 years, 10 months ago

    2 π r h + 2 π r 2 2 \pi rh + 2 \pi r^{2} 2πrh+2πr2.

    1Thank You

    ?Mansi ? 4 years, 10 months ago

    the CSA of a cylinder will be: 2*π*R*H

    2Thank You

    Yogita Ingle 4 years, 10 months ago

    Curved Surface Area- The curved surface area is defined as the area of only curved surface, leaving the circular top and base.

    Formula for calculating the Curved Surface Area (C.S.A.)-

    Consider a cylinder having a height ‘h’ and base radius ‘r’.

    The curved surface area of a cylinder is given as-

    C.S.A.= 

    1Thank You

    ANSWER

    • Posted by Puneeth Srisailam 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    ?Mansi ? 4 years, 10 months ago

    3:5

    1Thank You

    Mohit Gupta 4 years, 10 months ago

    And the value of X is 9.??

    0Thank You

    Mohit Gupta 4 years, 10 months ago

    Hey! That is not the answer by mistake I typed it so answer is 3:5

    2Thank You

    Mohit Gupta 4 years, 10 months ago

    Ratio is 7:2

    2Thank You

    Daksh Khandelwal 4 years, 10 months ago

    Chapter 7 exercise 7.2

    0Thank You

    ANSWER

    • Posted by Aditya Kumar 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Gaurav Seth 4 years, 10 months ago

    Height is the measurement of an object in the vertical direction and distance is the measurement of an object from a particular point in the horizontal direction. If we imagine a line connecting the point of observation to the topmost point of the object then the horizontal line, vertical line and the imaginary line will form a triangle.

    Observe the figure. Consider the observer to be at point C. The height of the object is shown by line AB. The distance of the object from the observer is given by line BC. The object may or may not be perpendicular to the ground. Line AC represents the Line of Sight when the observer is observing the topmost point of the object. Angle α represents the angle of elevation and Angle β represents the angle of depression.

    Using trigonometry, if we are provided with any of the two quantities that may be a side or an angle, we can calculate all the rest of the quantities. By the law of alternate angles, the angle of elevation and angle of depression are consequently equal in magnitude (α = β). Tan α is equal to the ratio of the height and distance.

    You can be provided with any two of the following information:

    • The distance of the object from the observer
    • The height of the object
    • Angle at which the observer views the topmost point of the object (angle of elevation)
    • The angle at which the observer views the object when the observer is on top of a tower/building (angle of depression)

    0Thank You

    ANSWER

    • Posted by Supriya Bharti 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Pulkit Kumawat 4 years, 10 months ago

    Question

    0Thank You

    ANSWER

    • Posted by Prashant Singh 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Yogita Ingle 4 years, 10 months ago

    Let a be the positive odd integer which when divided by 6 gives q as quotient and r as remainder.

    according to Euclid’s division lemma
    a=bq+r

    a=6q+r

    where , a=0,1,2,3,4,5
    then,
    a=6q
    or
    a=6q+1
    or
    a=6q+2
    or
    a=6q+3
    or
    a=6q+4
    or
    a=6q+5

    but here,
    a=6q+1 & a=6q+3 & a=6q+5 are odd.

    0Thank You

    Bhaduram Hembra 4 years, 10 months ago

    What is meant by the idea of satyagraha ?

    1Thank You

    Bhaduram Hembra 4 years, 10 months ago

    What is gegraphy

    2Thank You

    ANSWER

    • Posted by Anuj Kumar 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Sakshi Jagtap 4 years, 10 months ago

    ??hlo......If that person is upset? at u there will be a particular reason behind her/his upsetness, it might be bcuz of some mistake happened from uhh or something else. U both will be friends ?or besties ? or ❤️luv birds, so u both will be doing some fun or cute gossips or cute fighting's in past. So u should repeat that gossips with ur dash or tell that person about ur past fighting's..... absolutely then that person will laugh?. Actually i have a real experience about this thing, my boyfriend was a bit upset at me then i noticed for some days n then i refreshed the old fun n memories between us then he started to laughing n give me a hot hug. I wish ?that this works on uhh. All the best?......IF I WAS KNOWING THE REASON BEHIND HIS OR HER UPSETNESS, I MIGHT HAVE HELPED UHH MORE NICELY.

    0Thank You

    Shikha Gupta 4 years, 10 months ago

    Can you please explain from which study side u have asked this question

    2Thank You

    ANSWER

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