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Prove than tan 56^(@) =("cos " 11^(@) ...

Prove than tan `56^(@) =("cos " 11^(@) + "sin " 11^(@))/("cos " 11^(@) =- "sin "11^(@))`

A

`tan 45^(@)`

B

`tan 56^(@)`

C

`tan 60^(@)`

D

`cot 11^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
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