If $\cos(2\sin^{-1}x)=1/9$ then what is the… | ClassNotes

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If $\cos(2\sin^{-1}x)=1/9$ then what is the… | ClassNotes

E

Editor

Sep 18, 2022

If $\cos(2\sin^{-1}x)=1/9$ then what is the value of x?

Difficulty: Easy

A:

1/3

B:

-2/3

C:

2/3

D:

2/3, -2/3

ID: 63273db9ca83163ac3a11547