Class 11 Book Solution from Miscellaneous in Transformations of Sums and Products Trigonometric Functions Question No: 251
যদি \(\frac{cot(\alpha -\beta)}{cot\alpha} + \frac{cos^2\gamma}{cos^2\alpha} = 1\) হয় তবে দেখাও যে \(tan^2 \gamma+tan \alpha \ cot\beta\)

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