## Miscellaneous Exercise on Chapter 2 Prove that 5.

MATHEMATICS · Subjective · CBSE · Mathematics · Inverse Trigonometric Functions · Inverse Trigonometric Functions

Problem

## Miscellaneous Exercise on Chapter 2 Prove that 5.

\cos ^{-1} \frac{4}{5}+\cos ^{-1} \frac{12}{13}=\cos ^{-1} \frac{33}{65}

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