Objective Type Question:

Submitted by alpha on Sat, 05/15/2010 - 12:58.

Trigonometry questions

If $\alpha,\beta$ are the solution of $a tan\theta+ b sec\theta=c$ , then $tan(\alpha+\beta)=$
a) $\frac{2ac}{a^2-c^2}$
b) $\frac{2ac}{c^2-a^2}$
c) $\frac{2ac}{c^2+a^2}$
d)None of these

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Objective Type Question: