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General solution of the equation tan t...

General solution of the equation
`tan theta + tan 4 theta + tan 7 theta = tan theta cdot tan 4 theta cdot tan 7 theta "is" theta = `

A

`(npi)/(12),/n in 1`

B

`(npi)/(4), n in 1`

C

`(n pi)/(3), n in 1`

D

`(npi)/(6), n in 1`

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The correct Answer is:
A
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