Use a calculator to find the value of the expression in radi

Use a calculator to find the value of the expression in radian measure rounded to 2 decimal places. csc^-1 (-5/3) -36.87 -0.64 126.87 2.21

Solution

cose^-1 (-5/3)

= - cosec^-1 (5/3)

By using the calculator we get ,

- cosec^-1 (5/3) = - 0. 6435

Now rounded to 2 decimal places we have,

- cosec^-1 (5/3) = - 0. 64

b is the correct option.