answers I've seen for sin 300 degrees say -sqrt 3/2 . How do I get an answer in that form instead of decimal?
Most calculators will only give the decimal form.....WolframAlpha will display the exact value....here's the result : http://www.wolframalpha.com/input/?i=sin%28300%29
However.....if we remember some basic trig.......300° is a 60° reference angle in the 4th quadrant
And the sine of 60° = sqrt(3)/2 ......but.....the sine is negative in this quadrant, so -sqrt(3)/2 is correct