Home
Class 12
MATHS
Let f(x) = cos 7 x cos 3x and g(x) = si...

Let `f(x) = cos 7 x cos 3x and g(x) = sin 7 x sin 3x `
` int g(x) dx = `

A

` 1/8 sin 4x - 1/20 sin 10 x+c`

B

` 1/4 sin 4x - 1/10 sin 10 x + c`

C

` 1/4 sin 4x + 1/20 sin 10 x + c `

D

` 1/4 sin 4x + 1/10 sin 10 x + c`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • IDENFINITE INTEGRAL

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Examination ( Matrix Match Type)|2 Videos

  • GENERAL SOLUTIONS OF TRIGNOMETRIC EQUATIONS

    CHHAYA PUBLICATION|Exercise Assertion-Reason Type-|2 Videos

  • INCREASING AND DECREASING FUNCTION

    CHHAYA PUBLICATION|Exercise Assertion-Reason Type|2 Videos

Similar Questions

Explore conceptually related problems

Let f(x) = cos 7 x cos 3x and g(x) = sin 7 x sin 3x int f(x) dx =

Let f(x) = cos 7 x cos 3x and g(x) = sin 7 x sin 3x int {f(x) + g(x) } dx =

Let f(x) = 3/( 3x^2 + 9) and g(x)= x^2/( 3x^2 + 9) int (f(x) + g(x)) dx = ?

(cos 4x +cos 3x + cos 2x )/( sin 4x + sin 3x + sin 2x)= cot 3x

int (sin x+ x cos x )/(x sin x)dx

Let f(x) = 3/( 3x^2 - 9) and g(x)= x^2/( 3x^2 - 9) int (g(x) - f(x)) dx is equal to ?

(cos 9x - cos 5x )/( sin 17 x- sin 3x )=- (sin 2x)/( cos 10x )

int (cos x +2 sin x)/(3 cos x + 4 sin x)dx

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

Let f(x)=2x-sin x and g(x)=3sqrtx then __