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The value of x in (0,(pi)/(2)) satisfyin...

The value of `x`` in ``(0,(pi)/(2))` satisfying the equation `sin x cos x` = `(1)/(4)` are . . .

A

`(pi)/(6),(pi)/(12)`

B

`(pi)/(12),(5pi)/(12)`

C

`(pi)/(8),(3pi)/(8)`

D

`(pi)/(8),(pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
B

We have, sinxcosx`=(1)/(4)`
`implies2sinxcosx=(1)/(2)implies sin2x=(1)/(2)`
`imiplies2x=sin^(-1)((1)/(2))=(pi)/(6)impliesx=(pi)/(12)`
if `x in (0,(pi)/(2))`, then `x=(pi)/(12),(pi)/(2)-(pi)/(12)=(pi)/(12),(5pi)/(12)`.
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