Question

sin3+cos3 is negative proof

Answer 1

Step-by-step explanation:

Hope uh try to feel it. Basically the line on the circle passing through 135° and 315° divides the circle into two regions.

In one region sin x + cos x > 0 and in the other

sin x + cos x < 0. And, on the line, i. e., at 135° and at 315° sin x + cos x = 0. I repeat, make sure uh try to feel it.