One of the problems im having difficulties with, the material I was provided doesn't really explain this well, having problems with part c/e.
Can anyone give me a step by step for part c so I can see what i'm doing?

a) quadrants 1,4
b ) quadrant 4




This post was edited by QrenogadeQ on Jan 5 2015 08:03pm

You can use a calculator to find the cosine of 12/13, then just convert to radians.

We know the coordinates point of is (12, 5) using the Pythagorean theorem. Cosine gives us the adjacent side and hypotenuse of the triangle, so we need the opposite side to form an x and y.

For part E you can just use the quadrant rule to find the other trigonometric ratios. For example Q1 is theta, Q2 is pi - theta...and so on.

Forgive me if some of this seems off, haven't taken trig in a long time. Just thought I'd take a stab at it since the semester is about to start, to jog my memory.

It makes sense ;p, thanks this is pretty much all i needed.

I think that is already listed in radian?