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The set of values of a for which x^(2)+a...

The set of values of `a` for which `x^(2)+ax+sin^(-1) (x^(2)-4x+5)+cos^(-1) (x^(2)-4x+5)=0` has at least one solution is

A

`(-oo, sqrt(2pi)] cup [sqrt(2pi),oo)`

B

`(-oo, -sqrt2pi) cup (sqrt(2pi),oo)`

C

R

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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