[" Number of integral value of 'a' for which "],[sin^(4)x+cos^(4)x=" a has a solution is "]

The set of values of a for which the equation sin^(4)x+cos^(4)x=a has a solution is

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 7cos x+5sin x=2k+1 has a solution is (1)4(2)8(3)10(4)12

The number of integral values of k for which the equation sin^(-1)x+tan^(-1)x=2k+1 has a solution is

The number of integral values of k for which the equation sin^(-1)x+tan^(-1)x=2k+1 has a solution is

The number of integral values of k for which the equation sin^(-1)x+tan^(-1)x=2k+1 has a solution is

The number of integral values of k for which the equation sin^(-1)x+tan^(-1)x=2k+1 has a solution is

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

The set of values of a for which the equation Sin^4 x + Cos^4 x = a has a solution is

The set of values of a for which the equation Sin^4 x + Cos^4 x = a has a solution is