Which is equivalent to sin-1(–0.4)? round your answer to the nearest hundredth of a radian.

-0.41 radians

Step-by-step explanation

(Credit goes to calculista)

let

A---> the angle

if sin A=-0.4

then 

A=sin-1(-0.4)

using a calculator

A=-23.578°> the angle A belong to the IV quadrant

convert to radians

if pi radians--]> 180°

x> -23.578°

x=-23.578*pi/180> x=-0.41 radians

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