The solution set of the inequality `4(cos^(-1)x)^2-1geq0` is a.`[-1,cos1/2]` b. `0,pi/3` c. `[cos1/2,1]` d. `[pi/3,(2pi)/3]`

The solution set of the inequality 4(cos^(-1)x)^(2)-1>=0 is a.[-1,(cos1)/(2)]b0,(pi)/(3)c*[(cos1)/(2),1] d.[(pi)/(3),(2 pi)/(3)]

The solution set of the inequality 4(cos^(-1)x)^(2)-1>=0 is [-1,(cos1)/(2)] (b) [0,(pi)/(3)]((cos1)/(2),1] (d) [(pi)/(3),(2 pi)/(3)]

The solution set of inequation cos x+(1)/(2)>=0 is [-pi,pi] is

Range of the function f(x)=(cos^(-1)abs(1-x^(2))) is a. [0,pi/2] " " b. [0,pi/3] c. (o,pi) " " d. (pi/2,pi)

The solution set of (2cos x-1)(3+2cos x)=0 in the interval 0<=x<=2 pi is

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

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

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

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