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If costheta1 2costheta2, then tan(theta(...

If `costheta_1 2costheta_2,` then `tan(theta_(1-theta_2))/2tan(theta_1+theta_2)/2` is equal to `1/3` (b) `-1/3` `1` (d) `-1`

A

`(1)/(3)`

B

`-(1)/(3)`

C

1

D

`-1`

Text Solution

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The correct Answer is:
B
NA
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