The solutions of the equation 4cos^(2) ...

The solutions of the equation ` 4cos^(2) + 6 sin^(2) x =5` are

A

`x=npi pm pi/2`

B

`x=npi pm pi/4`

C

`x=npi pm (3pi)/(2)`

D

None of these

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

The solution set of equation cos^(5)x=1+sin^(4)x is

The solution of the equation "cos"^(2) x-2 "cos" x = 4 "sin" x - "sin" 2x (0 le x le pi) , is

The number of solutions of the equation 1 +sin^(4) x = cos ^(2) 3x, x in [-(5pi)/(2),(5pi)/(2)] is

Solve 4 cos^(2)x+6 sin^(2)x=5 .

The number of solution of the equation 2 "sin"^(3) x + 2 "cos"^(3) x - 3 "sin" 2x + 2 = 0 "in" [0, 4pi] , is

The general solution of the equation 8 cos x cos 2x cos 4x = sin 6x//sin x is

The number of solutions of the equation 2(sin^(4)2x+cos^(4)2x)+3sin^(2)xcos^(2)x=0 is

The general solution of the equation sin^(2)x cos^(2)x+sin x cos x-1=0 is

The number of the solutions of the equation 3sin x+4cos x-x^(2)-16=0 is