Mathematics

Mathematics

Problem

Evaluate : a. csc⁡82∘−sec⁡8∘\csc 82^\circ - \sec 8^\circ b. sec⁡70∘sin⁡20∘+cos⁡20∘csc⁡70∘\sec 70^\circ \sin 20^\circ + \cos 20^\circ \csc 70^\circ

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