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Give some trick how I learn the trigonometry formula,s

Posted by Divyansh Singh Rajawat 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Aman Verma 5 years, 2 months ago

Padh ne me man laga khude yaad ho jayega

Suchita ..... 5 years, 2 months ago

PBP HHB

Suchita ..... 5 years, 2 months ago

Pakistan bhuka pasa Hindustan hara bhara Like this..... And reverse it

Kiran Kumari 5 years, 2 months ago

Only learn the formule of sin 30 ,45,60 $90 and use its reverse for cos

Bhavya Pandey 5 years, 2 months ago

Note down all the formulae in a paper and read it 10 times, write it 4 times

ANSWER

Pavements are meant for the pedestrians. But these foot paths have been encroached upon on everywhere in the city and the people are forced to walk on the crowded roads at a risk to their lives. Write a letter in 100-150 words to the Editor of The Times, drawing attention of the government to the problem, Telling how crores spent on the pavements for the benefit of the pedestrians have gone waste. Request the government to take strict action against the encroachers. You are Vinay/ Vijitha, 48, Kailash Colony. New Delhi.

Posted by Ananya Jossy Sebastian 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Winn Still 5 years, 2 months ago

Please write the format by yourself. I'm writing the body of the letter. Sir, I reside near the Kailash colony and I'm very scipturient for this letter as I'm worried about this problem since a very long time. Since past 5 months the people of my city are compelled to walk on the crowded roads because the pavements were muliated after the heavy rainfall. I've also discussed this problem with local municipality but the floccinaucinihilipilificated the problem. And from the columns of your reputed newspaper I want to draw the attention of people towards this problem. (Thanks Giving)

ANSWER

Agar mere maths m 80 m say 70 marks aate h toh muje is ko covert karna h 5 marks m toh m kasay karu

Posted by Krazy Girl 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If sin²A + sin²A=1, then find cos²A + cos4 A

Posted by Amritha Pradeesh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

TanQ + cotQ 1- cot Q 1-tanQ=1+secQ.cosecQ

Posted by Himanshu Saini 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Class 10th ch 8 trigonometry exercise 8.4 question 5 (iii)

Posted by Dhanvi Sharma 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Shristi Mishra 5 years, 2 months ago

L.H.S tanA/1-cotA + cotA/1-tanA sinA /cosA/1-cosA/sinA + cosA/sinA/1-sinA/cosA

ANSWER

Class 10th circle chapter example

Posted by Humesh Singh Tekam 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Shin Chan 5 years, 2 months ago

. The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle. Answer: Draw the diagram as shown below. Here, AB is the tangent that is drawn on the circle from a point A. So, the radius OB will be perpendicular to AB i.e. OB ⊥ AB We know, OA = 5cm and AB = 4 cm Now, In △ABO, OA2 =AB2+BO2 (Using Pythagoras theorem) 52 = 42+BO2 BO2 = 25-16 BO2 = 9 BO = 3 So, the radius of the given circle i.e. BO is 3 cm. 7. Two concentric circles are of radii 5 cm and 3 cm. Find the length of the chord of the larger circle which touches the smaller circle. Answer: Draw two concentric circles with the center O. Now, draw a chord AB in the larger circle which touches the smaller circle at a point P as shown in the figure below. From the above diagram, AB is tangent to the smaller circle to point P. ∴ OP ⊥ AB Using Pythagoras theorem in triangle OPA, OA2= AP2+OP2 52 = AP2+32 AP2 = 25-9 AP = 4 Now, as OP ⊥ AB, Since the perpendicular from the center of the circle bisects the chord, AP will be equal to PB So, AB = 2AP = 2×4 = 8 cm So, the length of the chord of the larger circle is 8 cm

Shin Chan 5 years, 2 months ago

???

Shin Chan 5 years, 2 months ago

I should study

ANSWER

Sir class size mean

Posted by Daksh Kumar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Harsh Nayak 5 years, 2 months ago

Maan le tuje 0-10 10-20 aise de rakha hai to tu khud dekh 0 se 10 ka difference kitna hai wahi tera class size samjha

Shristi Mishra 5 years, 2 months ago

Class size = upper limit+lower limit

Priya Yadav 5 years, 2 months ago

class size is the average of upper limit nd the lower limit of a paticular class .

ANSWER

√p+√q is irrational

Posted by Jaya Laxmi Verma 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Shristi Mishra 5 years, 2 months ago

Yes both √p and √q are irrational number and sum of irrational numbers are also irrational

꧁⁣༒?₦Ł₦ℑ₳?༒꧂ Tarun 5 years, 2 months ago

Yes because the sum of irrational and irrational is also irrational

ANSWER

Show that the progression 16 11 6 1 -4 is an ap. Write down its first term and the common difference.

Posted by Sujal Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Shristi Mishra 5 years, 2 months ago

Here , First term(a) = 16 Common difference (d) = 11-16= -5

Aman Dwivedi 5 years, 2 months ago

Yes it is an ap common difference (-5)

ANSWER

If -5 is a root of the quadratic equation 2x^2 +px-15=0 and the quadratic equation p(x^2+x)+k=0 has equal roots find the value of k.

Posted by Saman Firdous 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Ruhi Singh 5 years, 2 months ago

It is given that -5 is a root of f(x)=2x^2+px-15=0 f(-5)=2*(-5)^2+p*-5-15=0 2*25-5p-15=0 50-5p-15=0 5p=35 P=7 Now, Both equation have equal roots so,D=0 p(x^2+x)+k=0 Px^2 +px +k =0 Let a=p, b=p, c=k D=(b^2-4ac)=0 P^2-4*pk=0 49-28k=0. (P=7) 28k=49 K=49/28=7/4

ANSWER

a river 1.5m deep and 36 m wide is flowing at the rate of 3.5km/hr. Find the amount of water (in cubic metres) that runs into the sea per minute.

Posted by Arnav Kedia 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Five year hence the age of Jacob will be three time that of his son five years hence ago Jacob s age was seven times that of his son what are their present ages

Posted by Anurag Chauhan 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Mahesh Agarwal 5 years, 2 months ago

Jacob's age = 40 years His son's age = 10 years

Gunn Bhatia 5 years, 2 months ago

Let Jacob's age be x and his son's be y According to 1st condition x+5 = 3( y + 5) i.e. x - 3y = 10-----------------------------------Eqn1 According to 2nd condition x - 5 = 7( y - 5) i.e. x - 7y = - 30--------------------------------Eqn 2 Then by Elimination method we get y = 10 and then substituting value of y in any of the equations x = 40 So... Jacob's age is 40 years and his son's age is 10 years....

ANSWER

12 solid spheres of the same radii are made by melting a solid metallic cylinder of base diameter 2 cm and height 16 cm. Find the diameter of the each sphere.

Posted by Payal Dhankhar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Mahesh Agarwal 5 years, 2 months ago

1cm

Pj Jha. 5 years, 2 months ago

1cm

ANSWER

What is the ncert exampler

Posted by Ravi Kumar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Mary Stuart 5 years, 2 months ago

A book for students.... Also name of the book

Bipin Bihari 5 years, 2 months ago

do you want exampler book

Vani Vashisht 5 years, 2 months ago

This is the name of book

ANSWER

I need class work notes

Posted by Sivajawahar R V 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Mary Stuart 5 years, 2 months ago

Then make ur own notes Do some hardwork

ANSWER

Full marks kese laye?

Posted by Anuj Agrawal 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Bhavya Pandey 5 years, 2 months ago

Do your best !!?

Divyansh Singh Rajawat 5 years, 2 months ago

Teachers marks cut karte hai mistakes par ... If we have no mistakes no one dare to cut our marks

Shristi Mishra 5 years, 2 months ago

Full marks nhi aa skte teachers hmesha marks cut krte hai

シ︎?_?_?_?_? シ︎ 5 years, 2 months ago

Read every topic in syllabus carefully

Kunal Thakur 5 years, 2 months ago

Hard work

ANSWER

Value of sin -420° cos 390° + cos -660° sin 330° ?

Posted by Vandana 🇮🇳 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

4x+2y+9=0 6x+5y+4=0

Posted by Vandna Patel 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

100 m race was organised in a school sport meet . The time was recorded with the help of a stopwatch . A table shown below describes the time in which the race was finished by the number of students : Based on the data answer the questions: (a) What will be the lower limit of the modal class? 1 point 30 40 60 20 Clear selection

Posted by G. Trisha 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 11 months ago

Please ask question with complete information.

ANSWER

Write whether6√45+4√20+√405/√1050 on simplification gives a rational or irrational no.

Posted by Kripa Agrawal 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Is a PRime number greater than 80

Posted by Supriya Thami 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Shristi Mishra 5 years, 2 months ago

Yes, of course The numbers are — 83, 87,89,91 , 97, 101,103,107,111,113,etc

꧁⁣༒?₦Ł₦ℑ₳?༒꧂ Tarun 5 years, 2 months ago

Yes ex 113

Mahesh Agarwal 5 years, 2 months ago

Yes ex. 83

Tanvi Tomar 5 years, 2 months ago

Yes

Anuj Agrawal 5 years, 2 months ago

Yes... Ex:103

ANSWER

Solve the equation: 2(x-3)+ 3(x - 2)(2x - 3) = 8(x + 4)(x - 4) - 1

Posted by Aditya Shejal 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Shristi Mishra 5 years, 2 months ago

2x-6+6x²-9x-12x-18 = 8x²-32x+32x-128-1 2x-9x-12x = 8x²-6x²-129+18+6 -19x = 2x²-105 2x² -105+19=0

Pankaj Kumar 5 years, 2 months ago

2

ANSWER

Express 7429 as a product of its prime factor.

Posted by Vishakha Sharma 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Laxmi Yadav 5 years, 2 months ago

7429=17×19×23

Vishakha Sharma 5 years, 2 months ago

?

ANSWER

If p is the prime positive integer . Prove that √p is an irrational number

Posted by Nandini Verma 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 10 months ago

For any prime positive integer p, √p is an irrational number.

Let us assume that √p is a rational number.

Then, there exist positive co-primes a and b such that :-

√p = a/b

p = a²/b²

b²p = a²

p divide a²

p divides a.

a = pc ( positive integer c. )

Now, b²p = a²

b²p = p²c²

b² = pc²

p divide b²

p divides b

Therefore, p/a and p/b

This contradicts the fact that a and b are co-primes.

ANSWER

Prove that n²-n is divisible by 2 for every positive integer n

Posted by Sonakshi Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Aryan Tripathi 5 years, 2 months ago

Chapter 1 ka question hai na

ANSWER

१+काट+तन

Posted by Anil Kumar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 10 months ago

Please ask question with complete information.

ANSWER

find the remainder when the polynomial f(x) = 3x^3 -2x^2 + 5x+1 is divided by the polynomial g (x) = x+1

Posted by Bobby Dubey 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

???????⚫ ⚪ 5 years, 2 months ago

Remainder= -9 Quotient = 3x^2-5x+10

Anshul Gupta 5 years, 2 months ago

Answer

ANSWER

8 th 3.1 answer

Posted by Prashant Shrivastav 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 10 months ago

Please ask question with complete information.

ANSWER

8 th class 3.1

Posted by Prashant Shrivastav 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 10 months ago

Please ask question with complete information.

ANSWER

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