The set of all x in ((-pi)/2,pi/2) satis...

The set of all x in `((-pi)/2,pi/2)` satisfying `|4sinx-1| < sqrt(5)` is given by
(a) `(-pi/(10),(3pi)/(10))` (b) `(pi/(10),(3pi)/(10))` (c) `(pi/(10),(3pi)/(10))` (d) none of these

A

`((-9pi)/10 , (7pi)/10)`

B

`((-pi)/10 , (3pi)/10)`

C

`((-2pi)/10 , (3pi)/10)`

D

`(-pi , pi)`

Verified by Experts

The correct Answer is:

a

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