Question

Prove that (sin 3 + cos 3) is negative ​

Answer 1

${\huge {\mathfrak {\blue {Answer :-}}}}$

___________

The answer is in the above attachment.

${\boxed {Note }}$ :

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.

Thanks..!

Do drop a thanks.

Answer 2

Answer:

Answer:−

___________

The answer is in the above attachment.

{\boxed {Note }}

Note

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.

Thanks..!