how are they doing cos(340) its not even an right angle triangle
#Is this wrong
dim willow
icy muskBOT
how are they doing cos(340) its not even an right angle triangle
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winter junco
how are they doing cos(340) its not even an right angle triangle
for angles that arent between 0 and 90, you can extend them using these rules
cos(180 + a) = -cos(a), sin(180 + a) = -sin(a)
cos(180 - a) = -cos(a), sin(180 - a) = sin(a)
you dont have to memorize these though
just instead of thinking about a right triangle, think about a point moving around the unit circle
cos is its x coordinate, sin is its y coordinate, and theta is the angle between it and the positive x axis, measured counterclockwise