Question

Trigonometry: How to evaluate function values?

I'm given sin, 30 degrees, and I know that that is pi/6. But how do I find the function value?

Answer 1

sin is the y value... you wanna look at the y value of 30 degrees.

Answer 2

But how does that equal 1/2?

Answer 3

its some trig identities u have to learn

Answer 4

look at the unit circle on the second to last page of the attached cheat sheet
find 30 degrees. the second coordinate is sine

Answer 5

Thank you guys!