The number of real solutions of the equation`sin(2^x)=pi^x+pi^(-x)` is

The number of real solution(s) of the equation sin^(-1)sqrt(x^(2)-x+1)+cos^(-1)sqrt(x^(2)-x)=pi is/are

The number of real solutions of the equation sin^(-1)((1+x^(2))/(2x))=(pi)/(2)sec(x-1) is

The number of real solutions of the equation : cos^(7)x + sin^(4)x = 1 in the interval [-pi,pi] is :

Find the number of real solutions of the equation sin^(-1)(e^(x))+cos^(-1)(x^(2))=pi//2 .

Find the number of real solutions of the equation sin^(-1)(e^(x))+cos^(-1)(x^(2))=pi//2 .

The number of real solutions of the equation 2 sin 3x + sin 7x - 3 = 0 which lie in the interval [-2pi , 2pi] is

The number of real solutions of the equations: tan^-1 sqrt(x(x+1)) + sin^-1 sqrt(x^2 + x+1) = pi/2 is

The number of real solutions of the equation sqrt(1+cos2x)=sqrt(2)sin^(-1)(sin x),-pi<=x<=pi is 0(b)1(c)2(d) infinite

The number of real solution of the equation sqrt(1 + cos 2x) = sqrt2 sin^(-1) (sin x), -pi le x le pi , is