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यदि A = tan 11^(@) tan 29^(@), B =2 cot ...

यदि `A = tan 11^(@) tan 29^(@), B =2 cot 61^(@) cot79^(@)` हो, तो निम्न में कौन सही है ?

A

`A = 2B`

B

`A = -2B`

C

`2A = B`

D

`2A = -B`

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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