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यदि sin theta = (1)/(3) , हो तो cos t...

यदि `sin theta = (1)/(3)` , हो तो `cos theta` का मान होगा

A

`pm(8)/(9)`

B

`pm(4)/(3)`

C

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

D

`pm(3)/(4)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
`cos theta = sqrt(1 - sin^(2) theta) = sqrt(1 - (1)/(9)) = pm (2 sqrt(2))/( 3)`
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