# How do you evaluate # sin(arctan(-3))#?

##### 1 Answer

I want to add some nuances relating to

#### Explanation:

The angle for

Here,tan

So, the angle for positive

The angle for the opposite sign is in the 4th quadrant,

So,

I think that I have elucidated on the fact that

The nuances like this are important when direction is important, particularly in space mechanics, to avoid blunders.

Library functions in the calculator/computer might give