In Exercises 11-51

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

In Exercises 11-51, prove the identity. 19. (1−sin⁡β)(1+csc⁡β)=1−sin⁡β+csc⁡β−sin⁡βcsc⁡β(1-\sin \beta)(1+\csc \beta)=1-\sin \beta+\csc \beta-\sin \beta \csc \beta

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