Class 11 Book Solution from Miscellaneous in Trigonometric Functions of Compound Angles Question No: 294
যদি \(tan \theta = \frac{Q\ sin\ \alpha}{P + Q cos\ \alpha}\) হয়, তবে প্রমাণ করো যে \(tan(\alpha - \theta) = \frac{P \sin \alpha}{Q + P cos \alpha }\)
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