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Which of the following is true ?...

Which of the following is true ?

A

`sin '(pi)/(12)= (sqrt(3) - 1)/(2sqrt(2))`

B

`cos'(pi)/(12) = (sqrt(3) + 1)/(2sqrt(2))`

C

`tan 15^(@) = 2 - sqrt(3)`

D

`sin'(pi)/(10) = (sqrt(5) - 1)/(4)`

Text Solution

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The correct Answer is:
A
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