The value of `k` if the equation `2cosx+cos2k x=3` has only one solution is (a)`-2` (b)` 2` (c) `sqrt(2)` (d) `1/2`

For what value of k the equation sinx+cos(k+x)+cos(k-x)=2 has real solutions?

The equation k sinx + cos2x= 2k-7 has a solution if

The number of integer values of k for which the equation sin^(-1)x+tan^(-1)x=2k+1 has a solution is (a)1 (b) 2 (c) 3 (d) 4

Find the values of p so that the equation 2cos^2x-(p+3)cosx+2(p-1)=0 has a real solution.

For the equation cos^(-1)x+cos^(-1)2x+pi=0 , the number of real solution is (A)1 (B) 2 (C) 0 (D) oo

The values of a for which the equation sqrtasinx-2cosx=sqrt2+sqrt(2-a) has solutions are

Solve the equation (sqrt(3))/2sinx-cosx=cos^2x

Find the values of a if equation 1-cosx=(sqrt(3))/2|x|+ a ,x in (0,pi), has exactly one solution.

The number of solution of the equation |2sinx-sqrt(3)|^(2cos^2 x-3cosx+1)=1in[0,pi] is 2 (b) 3 (c) 4 (d) 5

The number of solutions of the equation tanx+secx=2cosx lying in the interval [0,2pi] is 0 (b) 1 (c) 2 (d) 3