Without using tables or a calculator

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

Problem

Without using tables or a calculator, answer the questions below. (i) Prove that

\tan 15^{\circ}=2-\sqrt{3}

. (ii) Hence find the exact value of

\cot 15^{\circ}

.

Related theory

Browse the problem library