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For problems Let cos^(-1)(4x^(3)-3x)=a+b...

For problems Let `cos^(-1)(4x^(3)-3x)=a+bcos^(-1)x`
If `x in (1/2,1)` then the value of `lim_(ytoa)b cos (y)` is

A

`-1/3`

B

`-3`

C

`1/3`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
D
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