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If tanx=b/a where a and b are real numbers find the value of sin2a

Answer» SIN(2a) = 2 Tan(x) / 1+ Tan² (x)

Tan² ( x ) = (b/a)²



Sin(2a) = 2 ( b/a) / 1 +( b²/a²)


Sin(2a) = 2 AB / (a² + b²)

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