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If A+B+C=pi and cosA=cosBcosC then tanBt...

If `A+B+C=pi` and `cosA=cosBcosC` then `tanBtanC` is equal to............... A) `1/2` B) `2` C) `1` D) `-1/2`

A

`1/2`

B

2

C

1

D

`-1/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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