Given:


To find:
The quadrant in which
lie.
Solution:
Quadrant concept:
In Quadrant I, all trigonometric ratios are positive.
In Quadrant II, only
and
are positive.
In Quadrant III, only
and
are positive.
In Quadrant IV, only
and
are positive.
We have,


Here,
is negative and
is also negative. It is possible, if
lies in the Quadrant IV.
Therefore, the correct option is D.
True.
You're allowed to move stuff around. Dogs of the AMS.

We wrote it in the form dy/dx = g(x) f(y) so this is separable.
I think 0 and 1 because it can be right in the number line