This trig memory trick from **TheXSquaredFactor **is really good.

It is for 'remembering' the sine and cosine of angles that most students are told to memorize.

So that is 0,30,45,60 and 90 degrees.

I think a lot of students would make good use of this nifty 'trick'.

Thanks XSquaredFactor :)

https://web2.0calc.com/questions/sine-cosine-and-tangent_2#r7

Melody
Jan 23, 2018

#1**+2 **

It's good to be recognized every once in a while.

Thanks, Melody :)

TheXSquaredFactor
Jan 23, 2018

#2**0 **

Sorry, just realized this had nothing to do with XSquaredFactor. Sorry!

helperid1839321
Jan 30, 2018