## Question

### Solution

Correct option is

#### SIMILAR QUESTIONS

Q1

If sin 3α = 4 sin α sin (x + α) sin (x – α), then 864 sin2 x + 3620 cos2 x is equal to.

Q2

If x and y are the solution of the equation 12 sin x + 5 cos x + 5 cos x = 2y2 – 8y + 21, the value of 3864 cot (xy/2) is

Q3

The number of values of x in the interval [0, 3π] satisfying the equation 2sin2x + 5sinx – 3 = 0 is:

Q4

If 2sin2θ – 5sinθ + 2 > 0, θ  (0, 2π), then θ :

Q5

The number of solutions of the pair of equations

2sin2θ – cos2θ = 0

2cos2θ – 3sin θ = 0

In the interval [0, 2π] is

Q6

If are the smallest +ive angles n ascending order of magnitude which have their sines equal to a +ive quantity λ then the value of Q7

The equation a sinx + cos2x = 2a – 7 possesses a solution if

Q8

The number of values of x in the interval [0, 5π] satisfying the equation 3sin2x – 7sin x + 2 = 0 is

Q9

The number of solutions of the equation tan x.tan 4x = 1 for 0 < x < π is

Q10

The values of x between 0 and 2π which satisfy the equation are in A.P. The common difference of the A.P. is