213k views
2 votes
If 0° < 0 < 90° or 180° < 0 < 270°, explain why sin 20 is always positive.

User Jacajack
by
6.8k points

1 Answer

7 votes

The value of sin (20°) will always be positive, because :

0° < 20° < 90°

we know, that 20° lies in first quadrant and values of sin in first quadrant is always positive.

User Gvl
by
7.8k points