Evaluate the following sin 30°- cos 30°?
1 Answer
May 13, 2018
No trick on this one, just another sad 30/60/90 trig question:
Explanation:
The first time we see the 30/60/90 triangle we can recognize it's half an equilateral triangle and do the
Trig mostly uses two triangles, 30/60/90 and 45/45/90 in the various quadrants, so it's not too onerous to memorize the trig functions of these.