If the equation` 2 sin x + 3 cos ax = 5` has a solution, then a is

If the equation sin x(sin x + cos x)=k has real solutions then k may lie in the interval

The equation 1+sin^2 ax = cos x has a unique solution then a is

Prove that the equation 2 sin x+cos x=3 has no solution.

If the equation sin x+cos(k+x)+cos(k-x)=2 has real solutions,then sin k can be(A)(1)/(4)(B)(1)/(sqrt(2))(C)(3)/(4)(D)-(3)/(4)

The equation 1+sin^(2)ax=cos x has a unique solution then a is

The equation 3 cos x + 4 sin x = 6 has …….. Solution

If the equation k cos x-3sin x=k+1 has a solution for x then

The equation "sin"^(6) x + "cos"^(6) x = lambda , has a solution if