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If sinalphasec(30^(@)+alpha)=1(0^(@)ltal...

If `sinalphasec(30^(@)+alpha)=1(0^(@)ltalphalt60^(@))`, then find the value of `sinalpha+cos2alpha`.

A

1

B

`(2+sqrt(3))/(2sqrt(3))`

C

0

D

`sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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