Question

If sinθ<0 and cosθ>0, then the terminal point determined by θ is in:

A.) Quadrant 1
B.) Quadrant 2
C.) Quadrant 3
D.) Quadrant 4

Answer 1

D.) Quadrant 4

Explanation:

Sin theta < 0 tells us the angle is in quadrant 3 or 4

The y component is negative

Cos theta >0 tells us the angle is in quadrant 1 or 4

The x component is positive

Therefore theta must be in quadrant 4