Question

why trigonometric ratios can't be negative??​

Answer 1

Answer:

Angles greater than 90°

The only difference is that now x or y (or both) can be negative because our angle can now be in any quadrant. It follows that the trigonometric ratios can turn out to be negative or positive.

Answer 2

Step-by-step explanation:

It can be negative if angle is greater that 90°

Hope it helps you