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

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

For what values of k, the equation x^2+2(k-4) x + 2k=0 has equal roots?

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 number of integral value of k for which the equation 7cos x+5sin x=2k+1 has a solution is

The number of integral values of 'k' for which the equation 3sinx + 4 cosx = k + 1 has a solution, k in R is

For what values of k, the equation 2x^(2) +kx + 8 = 0 has real and equal roots ?

Number of integral values of k for which the equation 4cos^(-1)(-|x|)=k has exactly two solutions,is:

The number of integer values of k, for which the equation 2 sin x =2k+1 has a solution, is

Find the least value of k such that the equation (ln x)+k=e^(x-k) has a solution.

Find the number of integral values of k for which the equation 12cosx - 5 sinx = 2k+1 has a solution.