Home
Class 12
MATHS
If sin A + sin^2 A + sin^3 A = 1 , then...

If `sin A + sin^2 A + sin^3 A = 1` , then find the value of `cos^6 A-4 cos^4 A + 8 cos^2 A`.

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS AND IDENTITIES

    ARIHANT MATHS|Exercise Exercise For Session 3|10 Videos

  • TRIGONOMETRIC FUNCTIONS AND IDENTITIES

    ARIHANT MATHS|Exercise Exercise For Session 4|10 Videos

  • TRIGONOMETRIC FUNCTIONS AND IDENTITIES

    ARIHANT MATHS|Exercise Exercise For Session 1|10 Videos

  • TRIGONOMETRIC EQUATIONS AND INEQUATIONS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|12 Videos

  • VECTOR ALGEBRA

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|9 Videos

Similar Questions

Explore conceptually related problems

If sin B= 1/2 find the value of 3 cosB- 4cos^3B .

If sin x + sin^(2) x= 1 , then the value of cos^(8) x - cos ^(4) x + 2cos^(2)x -1 is equal to :

Find the value of cos^(-1) { sin ( -π/2) }

If 3 sin theta + 4 cos theta=5 , then find the value of 4 sin theta-3 cos theta .

If sin theta_1 + sintheta_2 + sin theta_3 = 3 then find the value of cos theta_1 + cos theta_2 + cos theta_3.

If sin x + sin^2 x = 1 , show that : cos^4 x+ cos^2 x=1 .

If cos(sin^(-1)""(2)/(3)+cos^(-1)x)=0 , then find the value of x.

If S_n=cos^n theta+sin^n theta then find the value of 3S_4-2S_6

If sin x + sin y =a and cos x+cos y = b , find the values of : tan frac (x-y)(2) .

If sin x + sin y =a and cos x+cos y = b , find the values of : tan frac (x+y)(2) .