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If 0lttheta ltpi/2,sin2theta=cos3theta t...

If `0lttheta ltpi/2,sin2theta=cos3theta` then `sintheta=`

A

`(sqrt5-1)/4`

B

`(1-sqrt5)/4`

C

`(sqrt5+1)/4`

D

`-((sqrt5+1)/4)`

Text Solution

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The correct Answer is:
A
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