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The trigonometric equation sin^(-1)x=2 s...

The trigonometric equation `sin^(-1)x=2 sin^(-1)2a` has a real solution, if

A

`|a| gt (1)/(sqrt(2))`

B

`(1)/(2sqrt(2)) lt |a| lt (1)/(sqrt(2))`

C

`|a| gt (1)/(2sqrt(2))`

D

`|a| le (1)/(2 sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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