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

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

Number of solutions of the equation 2(sin^(-1)x^2)-sin^(-1)x-6=0 is

Number of solutions of the equation,sin^(-1)(1-x)-4sin^(-1)(x)=(pi)/(2), is equal to

The number of solutions of the equation sin^(-1)x+sin^(-1)(1-x)=cos^(-1)x is

Find the number of solutions of the equation sin x=x^(2)+x+1

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

The number of solutions of the equation cos^(-1)((1+x^(2))/(2x))-cos^(-1)x=(pi)/(2)+sin^(-1)x is 0(b)1(c)2(d)3