Question

what is arccot(sqrt2)
what is arccot(sqrt2)
@Mathematics

Answer 1

It's basically asking you "cosine **of what angle** is \(\sqrt{2}\) ? You have to find the angle.

Answer 2

how do find that, do i use the unit circle or something?

Answer 3

Yes. The unit circle is SUPER important.
have you seen this image? http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg

I have a few videos about the unit circle as well, which starts from the very basics:

http://www.youtube.com/user/mathteacher1729#grid/user/9FE48FF0B7A3E3F4

Answer 4

well so what angle...i really dont see where cos is sqrt2