Question

If θ = Arc tan(-1), find angle θ.

Is the negative sign dropped when inverse?

Answer 1

correct :)

Answer 2

no
wait whats ur question?

Answer 3

um sorry, my question was if you are inversing a negative number, do you drop the negative sign

Answer 4

as shown, if you are doing Arc tan(-1), being that, that is inverse of tan(-1), you drop the negative sign on 1 thus, tan^-1(1)?

Answer 5

or in other words, inverse of tan(1) ?

Answer 6

when you are dealing with negative numbers using inverse trig, it means your angle will actually lie in different quadrants.

So,