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if tan(alpha+beta)=(1)/(2) and tanalpha=...

if `tan(alpha+beta)=(1)/(2) and tanalpha=(1)/(3), then tanbeta`=______.

A

`(1)/(6)`

B

`(1)/(7)`

C

1

D

`(7)/(6)`

Text Solution

Verified by Experts

The correct Answer is:
B
`tan(alpha+beta)= (tanalpha+tanbeta)/(1-tanalphatanbeta)`.
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