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If theta=60^(@) , then (1)/(2)sqrt(1-s...

If `theta=60^(@)` , then `(1)/(2)sqrt(1-sintheta)` is equal to

A

a.`"cot"(theta)/(2)`

B

b. "sqrt(3-sqrt2)/2sqrt2

C

c.`"sin"(theta)/(2)`

D

d.`"cos"(theta)/(2)`

Text Solution

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The correct Answer is:
D
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