प्रमाणित गर्नुहोस् (Prove that): \( \dfrac{\cos^2 A -… – SEE Class 10 Optional Maths 2081 Solved

SEE Class 10 Optional Maths · 2081 · Solved Question with Answer

प्रमाणित गर्नुहोस् (Prove that):
\( \dfrac{\cos^2 A - \sin^2 B}{\sin A \cdot \cos A + \sin B \cdot \cos B} = \cot(A + B) \)

Solution

प्रमाणित गर्नुहोस् (Prove that): \( \dfrac{\cos^2 A - \sin^2 B}{\sin A \cdot \cos A + \sin B \cdot \cos B} = \cot(A + B) \)