જો \(tan\theta=\frac{12}{13}\) હોય તો \(\frac{2sin\theta cos\theta}{cos^2\theta -sin^2\theta }\) ની કિંમત શોધો.

1
\(\frac{13}{12}\)
2
\(\frac{413}{25}\)
3
\(\frac{312}{25}\)
4
\(\frac{512}{25}\)

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