Question

Math question

Answer 1

@satellite73 C?

Answer 2

\[\sqrt{1-\sin^2 (\theta)}=\pm \cos (\theta)\\if =\cos (\theta)\\cos(\theta) \geq 0\]

Answer 3

can you go on ?

Answer 4

I'm confused...

Answer 5

of course you are this question is ill posed

Answer 6

someone who is deficient in the logic department wrote it
this one goes right in to the "bad math" pile.
what is true is that
\[\sqrt{1-\sin^2(x)}=\cos(x)\] if \(\cos(x)\geq 0\)

Answer 7

cosine is positive in quadrant 1 and 4