Ok, I keep coming up on these problems, reference angles are easy and I understand them, and why they work now.. The question I keep getting is find the exact value of a function without using a calculator.
sin(150 degrees)
that equals sin(40 degrees) , my book gives me an answer of 1/2 .. why is this 1/2? I understand we are doing this on a unit circle but can someone please explain!
thanks
sin(150 degrees)
that equals sin(40 degrees) , my book gives me an answer of 1/2 .. why is this 1/2? I understand we are doing this on a unit circle but can someone please explain!
thanks