- #1
Karol
- 1,380
- 22
Homework Statement
Simplify:
$$\sin^{-1}(2\sin^{-1}0.8)$$
Homework Equations
Inverse sine: ##y=\sin^{-1}(x)~\rightarrow~\sin(y)=x##
$$\sin^2(x)+\cos^2(x)=1$$
The Attempt at a Solution
The inner parenthesis: ##\sin y=0.8## . In the drawing it's alpha's sine.