Question

If sin x = ½,what is cos x?
HELP

Answer 1

it could be either \(\frac{\sqrt{3}}{2}\) or \(-\frac{\sqrt{3}}{2}\)
depending on what quadrant you are in
do you know how to find these numbers?

Answer 2

NO

Answer 3

im new to this i just started taking geometry

Answer 4

are you using the unit circle, or are you using triangles?

Answer 5

unit circle..i think

Answer 6

look at the unit circle on last page of the attached cheat sheet
the first coordinate is cosine, the second is sine
look where you see the second coordinate is \(\frac{1}{2}\) and you will see that the first coordinate is \(\frac{\sqrt{3}}{2}\)
you can derive this also by pythagoras

Answer 7

oh okay thankyou (: