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If sin^(-1) a is the acture angle betwee...

If `sin^(-1)` a is the acture angle between the curves `x^(2) + y^(2) =4x and x^(2) + y^(2) = 8` at (2,2), then a=

A

1

B

0

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
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