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For for A=133^(@),2cos""A/2is equal to...

For `for A=133^(@),2cos""A/2`is equal to

A

`-sqrt(1+ sin A)-sqrt(1-sin A)`

B

`-sqrt(1+ sin A)+ sqrt(1- sin A)`

C

`sqrt(1+ sin A)- sqrt(1- sin A )`

D

`sqrt(1+ sin A )+ sqrt(1- sin A)`

Text Solution

Verified by Experts

The correct Answer is:
C
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TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES -CRITICAL THINKING
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  12. If sec theta =1 (1)/(4), then tan ""(theta)/(2)=

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