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The value of 'a' for which ax^2 + sin^-1...

The value of 'a' for which `ax^2 + sin^-1 (x^2 - 2x + 2) + cos^-1 (x^2 - 2x + 2) = 0` has a real solution is

A

`-2/pi`

B

`2/pi`

C

`-pi/2`

D

`pi/2`

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Verified by Experts

The correct Answer is:
C
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PATHFINDER-TRIGONOMETRIC EQUATION AND INVERSE-QUESTION BANK
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