Question

How do you find the sine, cosine, and tangent values on the unit circle? Provide an example

Answer 1

@imqwerty

Answer 2

cos is x and sin is y,
so you would look up your angle in the unit circle
and the coordinate pair is (cos,sin)

Answer 3

take the example of 45 degrees or pi/4
the cosine of pi/4 is \[\frac{ \sqrt{2} }{ 2 }\] and the sine of pi/4 is the same

Answer 4

where does the tangent come into this? @stephanos100

Answer 5

tangent is sin/cos so in the case of pi/4, it would be 1

Answer 6

Still need help?

Answer 7

Yes I'm a little confused @Loser66

Answer 8

ok, be patient, please. First off, pi/4 That is 1 pi divided by 4, 2pi divided by 8,you have this pic.

Answer 9

That is values of cos and sin for pi /4

Answer 10

So all of values of those points are the same, so that you have
\((\sqrt2/2,\sqrt 2/2)\) for 4 points. BUT different signs.