Q. The value of $\frac{s i n 1 0 ^{\circ} + s i n 2 0 ^{\circ}}{c o s 1 0 ^{\circ} + c o s 2 0 ^{\circ}}$ equals

72 123 Trigonometric Functions Report Error

A

$2 + 3$

24%

B

$2 - 1$

8%

C

$2 - 3$

60%

D

$2 + 1$

7%

Solution:

Correct answer is (c) $2 - 3$