If tan x=b/a, then value of (a2+ b²) sin 2x is-

A 2ab

B \( \frac{a b}{a^{2} + b^{2}} \)

C \( \frac{2 a b}{a^{2} + b^{2}} \)

D \( \frac{1}{2 a b} \)

Solution

Correct Answer: Option A

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