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If 4cos^(-1)x+sin^(-1)x=pi, then x is...

If `4cos^(-1)x+sin^(-1)x=pi,` then x is

A

`(3)/(2)`

B

`(1)/(sqrt(2))`

C

`(sqrt(3))/(2)`

D

`(2)/(sqrt(3))`

Text Solution

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The correct Answer is:
B, C
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