Question

Use a calculator to determine the value of arcsin (-0.66).

0.72



2.29



-0.72



-2.29

Answer 1

arcsin means sin inverse. So we are to find the sin inverse of -0.66. This can be directly done by using a calculator. Do not forget to change the calculator mode to radians. If the mode of the calculator is degrees the answer will be different.

So, using the calculator arcsin(-0.66) = -0.7208

Rounding of to nearest hundredth, the answer comes to be -0.72