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If alpha, beta be the solutions of theta...

If `alpha, beta` be the solutions of `theta` for the equation `a tan theta + b sec theta = c` then prove that `tan(alpha+ beta) = 2ac/(a^(2)-c^(2))`.

A

`a/b`

B

`b/a`

C

`c/a`

D

`c/b`

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