# Given #sintheta>0# and #costheta>0#, which quadrant does #theta# lie?

##### 1 Answer

Feb 23, 2018

quadrant I

#### Explanation:

Given:

The sine function is positive in the I & II quadrants.

The cosine function is positive in the I & IV quadrants.

This means the only quadrant that both trigonometric functions are positive is quadrant I.