Question

How is tan^-1(1) = pi/4?

Answer 1

for the same reason that \[\tan(\frac{\pi}{4})=1\]

Answer 2

arctangent is the number (angle if you like) between \(-\frac{\pi}{2}\) and \(\frac{\pi}{2}\) whose tangent is given
you are given that the tangent is 1, so the angle must be \(\frac{\pi}{4}\)

Answer 3

Thanks again. I should really review my unit circle and algebra.

Answer 4

yw
(good idea)

Answer 5

I thought open study was closing btw?