प्रमाणित गर्नुहोस् (Prove that): \( \frac{\sin A \cdot \cos… – SEE Class 10 Optional Maths 2082 Solved

SEE Class 10 Optional Maths · 2082 · Solved Question with Answer

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

Solution

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