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gandalfwiz
I forgot how to do radians :P What's (7 pi)/6 and how do you find it?
Wait, it's sin (7 pi)/6
pi radians = 180 degrees
I know that pi= 180, but there's a way to find the value without your calculator.
7pi/6 = 7/6 * 180 = 210 degrees sine is negative in 3rd quadrant look up sin 30 degrees on ur calculator and multiply by -1
Okay, I think I got it.
yes 30 degrees is in the following triangle |dw:1371505489250:dw|
I actually did mine a different way, but they both work :) Thank you!