Answer the following questions without using a calculator or trigonometric tables.

MATHEMATICS · Multi-part · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

Answer the following questions without using a calculator or trigonometric tables. (i) Justify that sin⁡75∘=cos⁡15∘\sin75^\circ=\cos15^\circ. (ii) Hence find the exact value of sin⁡75∘\sin75^\circ.

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