(x)tan^(-1){sin(-(pi)/(2))}

Find the principal value of tan^(-1){sin(-(pi)/(2))}

Evaluate each of the following: cos e c^(-1)(-(2)/(sqrt(3)))+2cot^(-1)(-1)(ii)tan^(-1)(-(1)/(sqrt(3)))+cot^(-1)((1)/(sqrt(3)))+tan^(-1)(sin(-(pi)/(2)))

Evaluate each of the following: cot^(-1)(1)/(sqrt(3))-csc^(-1)(-2)+sec^(-1)((2)/(sqrt(3)))cot^(-1){2cos(sin^(-1)(sqrt(3))/(2))}csc^(-1)(-(2)/(sqrt(3)))+2cot^(-1)(-1)tan^(-1)((1)/(sqrt(3)))+cot^(-1)((1)/(sqrt(3)))+tan^(-1)(sin(-(pi)/(2)))

Find the value of : tan ^(-1) sin (-(pi)/(2))

Evaluate the principal value of   v = tan^(-1)[sin(-(pi)/(2))] is:

Write the principal value of tan^(-1)[sin(-(pi)/(2))]