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Standard XI
Maths
Trigonometric Functions of Sum and Difference of Two angles
Question
$$\alpha and \beta $$ are solutions of a tanx+b secx =c $$tan(\alpha+\beta )$$ =?
A
$$\frac{2ac}{a^{2}-c^{2}}$$
B
$$\frac{2ac}{a^{2}+c^{2}}$$
C
0
D
none
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Solution
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Correct option is A. $$\frac{2ac}{a^{2}-c^{2}}$$
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