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If tan theta + tan 2theta + tan 3theta =...

If `tan theta + tan 2theta + tan 3theta = 0` then `theta =`

A

`theta=npi//6, n in Z` only

B

`theta=n pi +-alpha, n in Z` where `tan alpha=1//2sqrt(2) ` only

C

Both a and b

D

`theta=n pi +-alpha, n in Z`, where `tan alpha=1/(sqrt(5))` only

Text Solution

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The correct Answer is:
B
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