Here's the question you clicked on:
SavannahMiller27
Evaluate the six trigonometric functions of the quadrantal angle theta. -270 degrees
Are you referring to cos,sin,tan, sec, cosec and cot?
|dw:1383612986330:dw|This angle is the same as \(\large 90^o\) yes? :)
|dw:1383613163684:dw|The y component gives us the value for sine. So what is the length of that line in the y direction? It's the radius of the circle yes?
Do you understand how to find sine and cosine of \(\large 90^o\)? If you can do those two, you can build all the other trig relations off of those.
If you're just using a chart or some way to memorize sine and cosine, then that's fine also :o
okay thanks! that helped out a lot