Question

Prove that tan α = $\frac{sin 2\alpha}{1 + cos 2\alpha}$ and hence deduce the values of tan 15° and $22\frac{1}{2}^{\textdegree}$.

Answer 1

Explanation:

Hi,

In this question, we have to prove a Trigonometric Formula.

Then using the same formula, we can find the values of given angles as asked in the question.

I have provided a detailed answer of this question.

Kindly see the Attachment for the detailed answer.

I hope it will help you.