Question

Solution

Correct option is

SIMILAR QUESTIONS

Q1

Let α β [– π π] be such that cos (α – β) = 1 and cos(α + β) = 1/e, The number of pairs of α, β satisfying the above system of equation is

Q2

The number of solution of the pair of equations 2sin2θ – cos2θ = 0 and 2cos2θ – 3sinθ = 0 in the interval [0, 2π] is

Q3

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

Q4

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

Q5

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

Q6

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

Q7

 

The number of solutions of the pair of equations   

     2sin2θ – cos2θ = 0   

    2cos2θ – 3sin θ = 0     

In the interval [0, 2π] is

Q8

 

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  

    

Q9

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

Q10

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