Evaluate the following 13 sin1 square root of 3 divided by

Evaluate the following:

13. sin^-1( - square root of 3, divided by 2)

14. arctan (square root of 3)

15. cos(cos^-1 1.2)

16. tan^-1(tan 4pi/5)

17. arcsin(-1)

Solution

13. sin^-1(-3/2) = 150 degree = 5pi/6 radian

14. arctan (3) = 60 degree = pi/3 radian

15. cos(cos^-1 0.5) = cos(60) = 0.5

16. tan-1(tan 4pi/5) = tan^-1(-0.72654) = -36 degree = -pi/5 radian

17. arcsin(-1) = -90 degree = -pi/2 radian