Question

Evaluate cos(Sin-1 0)

Is it 1?

Answer 1

\(\bf cos(sin^{-1}(0)) \ \ ?\)

Answer 2

if that's what you're asking, yes, is 1

Answer 3

This is what the question looks like.

Answer 4

hmm, then yes, sine is 0 at angles \(\bf \cfrac{\pi}{2} + n\pi; n >0\)

at those points, that is 0 and pi for one revolution, then cosine will be \(\bf \pm 1\)

Answer 5

thank you so much!

Answer 6

yw

Answer 7

hmm, actually anyhow, should have been \(\bf n\pi; n >0\)

Answer 8

well, \(\bf n\pi; n \ge 0\) better

Answer 9

hehe, sine is 0 at pi and 0 and further the same on whatever revolutions