trigonometry

Question: The value $\cos 105{}^\circ +\sin 105{}^\circ $is

1) $\frac{1}{2}$

2) 1

3) $\sqrt{2}$

4) $\frac{1}{\sqrt{2}}$

Solution:

Explanation: No Solution

Fundamental trigonometrical ratios and functions Trigonometrical ratio of allied angles

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)