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Ans: 76 firstly put the value of n as 1 then u will get A1 then put n=2 then u will get the value of A1+ a2 then after receiving value of a2 find d then by formula of n therms u will get the value of 35 terms

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What are the portions deleted from chapter Introduction to trigonometry?

Posted by Fidha Sunil 2 years, 9 months ago

CBSE > Class 10 > Mathematics

3 answers

Nitin Kumar 2 years, 9 months ago

Complementry angle was

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Account Deleted 2 years, 9 months ago

Complementary Angle was deleted.

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Aryan Indani 2 years, 9 months ago

Nothing

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Solve for x ✓3x² - 2✓2x - 2✓3 =0

Posted by Samayra Ghaniwale 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Mahima Dubey 2 years, 9 months ago

√3x² - 2√2x - 2√3 = 0 √3x² - 3√2x + √2x - 2√3 = 0 √3x(x -√6 ) + √2(x -√6)=0 (√3x+√2) (x- √6)=0 (√3x+√2) =0 || (x- √6)=0 x= -√2/√3 || x= √6

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Origami is the art of paper case study of gurmeet

Posted by Priyanka Soni 2 years, 9 months ago

CBSE > Class 10 > Mathematics

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From a point on the ground the angles of elevation of the bottom and top of a transmission Tower is fixed at the top of a 10 M high building are 30° and 60 degree respectively find the height of the tower.

Posted by Sample Paper 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Sparshika Singh 2 years, 8 months ago

First draw the diagram. Then take height of tower as x. Also tan 30=10/y 1/√3=10/y y=10√3 Use it to find height of tower. Tan 60=10+x/10√3 √3=10+x/10√3 30=10+x x=20 Therefore height of tower is 20m

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The point on the x axis is eqidistant from A(-2,3) B(5,4)

Posted by Aryan Vasan 2 years, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Mridul S 2 years, 9 months ago

Let the point be (x,0) because it lies on x axis so y is 0 Find OA first with this formula √(x¹-x²)^2+(y¹-y²)^2 Then find OB you will get something with values of x since they are equal equate both expression then you will get the value of x either directly or an equation after solving you will get x .

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Shivam Kumar 2 years, 9 months ago

By using distance formula √(x¹-x²)^2+(y¹-y²)^2

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In fig 1,xp/py=xq/qz=3,if the area of triangle xyz is 32 cm^2,then find the area of the quadrilateral pyzq

Posted by Yash Mittal 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Sandy Yudevanshi 2 years, 9 months ago

Land🖕

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√x + 𝑦=7 x + √y =11 Find X and Y when X and Y are real numbers?

Posted by Gourav Sharma 2 years, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankit Class 2 years, 9 months ago

X=9 ,y=4

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Ajitesh Bajpai Om Bajpai 2 years, 9 months ago

X=4,y=6

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Sn=5n²+3n then find its nťh term

Posted by Yogesh Subedi 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Vaibhavi Singh 2 years, 9 months ago

10n-3

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Prove that √7 is irrational.

Posted by Ganesh Kumar Sethy 2 years, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Account Deleted 2 years, 9 months ago

Let assume that √7 is a rational number. So, √7=a/b (a & b are Co-prime number & b is not equal to 0) Squaring both side (√7)^2 = (a/b)^2 7 = a/b^2 7b^2 = a^2 Therefore, 7b^2 divides a^2 & a. ---------(1) Again, Let the a^2 = m^2 7m^2 = b^2 7a^2 = b^2 Therefore, 7a^2 divides b^2 & b. ---------(2) By equations (1) & (2), We get that, Our assumption is wrong. So, √7 is an Irritaional number.

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Prashant Majhi 2 years, 9 months ago

√7 rrational

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√7 is irrational prove it

Posted by Ganesh Kumar Sethy 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Aayush Verma 2 years, 9 months ago

Let us assume that 7 is rational. Then, there exist co-prime positive integers a and b such that 7=ba ⟹a=b7 Squaring on both sides, we get a2=7b2 Therefore, a2 is divisible by 7 and hence, ais also divisible by7 so, we can write a=7p, for some integer p. Substituting for a, we get 49p2=7b2⟹b2=7p2. This means, b2 is also divisible by 7 and so, b is also divisible by 7. Therefore, a and b have at least one common factor, i.e., 7. But, this contradicts the fact that a and bare co-prime. Thus, our supposition is wrong. Hence, 7 is irrational.

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5/2-2

Posted by Rohan Jha 2 years, 9 months ago

CBSE > Class 10 > Mathematics

3 answers

Chinmayi P P 2 years, 9 months ago

5/2-2=0.5 or 1/2

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Vaibhavi Singh 2 years, 9 months ago

1/2

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Abcd Abc 2 years, 9 months ago

1/2

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A test tube has a hemisphere-shaped lower portion and a cylindrical upper portion with the same radius. The test tube fills up to the point of being exactly full when 4554 /7 cu. cm of water is poured, but when only 396 cu. cm is added, 9 cm of the tube is left empty. Calculate the test tube's radius and the cylindrical part's height

Posted by Shreya Sharma 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Tanya Siwach 2 years, 9 months ago

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Find the value of ‘p’ for which the quadratic equation p(x-4) (x-2) + (x-1)² = 0 has real and equal roots.

Posted by Binit Tripathy 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Sirisha Patnaik 2 years, 9 months ago

Answer

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5x^2+(p+q+r)x+pqr=0 ,find p^3+q^3+r^3

Posted by Siddhant Trivedi 2 years, 9 months ago

CBSE > Class 10 > Mathematics

0 answers

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Px²-2x+3p

Posted by Aditya Raghuwanshi 2 years, 9 months ago

CBSE > Class 10 > Mathematics

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Water in a canal 6m wide and 1.5m deep is floating with speed 10km/h . How much area will irrigate in 30 mm minutes , if 8 cm of standing water needed

Posted by Alakh Mishra 2 years, 9 months ago

CBSE > Class 10 > Mathematics

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What are co- prime and prime number

Posted by Fuzail Pasha 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Omya Aryan 2 years, 9 months ago

Any number having the factors only 1 and the number itself is called prime number whereas any two successive prime numbers are called co prime number.

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HCF of 198,144 and 177

Posted by Mangifera Indica 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Zone Gaming 2 years, 9 months ago

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If (1,p/3) is the mid point of the line segment joining the point (2,0) and (0,2/9) then show that the line 5x + 2y = 0 passes through the point (-1,3p)

Posted by Diksha Singh 2 years, 9 months ago

CBSE > Class 10 > Mathematics

0 answers

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Given 15 cotA=8 find sinA and secA

Posted by Aaniya Kumari 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Hsns Jsjsns 2 years, 9 months ago

CotA=8/15=B/P Then SinA=P/H=15/17. (17 is coming by Pythagoras theorem) then SecA=H/B=17/8

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Solve- 2tan theta + Cos²Theta where Sin theta=Tan Theta

Posted by Mahika Agarwal 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Simar Saini 2 years, 9 months ago

😶

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Which of the following expressions represent D in terms of p and r? A) 𝟕𝒓 𝒑 m B) 𝒑𝒓 𝟕 m C) 𝒑𝒓 𝒑+𝟕 m D) 𝒓(𝒑+𝟕) 𝒑 m

Posted by Khushi Khandelwal 2 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Sadgi Sadgijain 2 years, 9 months ago

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Prove that root 5 plus root 3 is irrational

Posted by Sathvik V.R 2 years, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Sriya Sharma 2 years, 9 months ago

first assume it as a rational number And then solve Answer = Root 5 +root 3 =p/q where q is not equal to 0 Root 5 + root 3 ×q =p Root 3 = p/5q Since root 3 is an irrational number and p/q is isn't clear So root 5+ root 3 is an irrational number.

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Anurag Mishra 2 years, 9 months ago

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In coordinate geometry whether area of triangle is included or deleted?

Posted by Jaya Mukherjee 2 years, 9 months ago

CBSE > Class 10 > Mathematics