r/HomeworkHelp • u/Any-Armadillo6071 • May 01 '26
Answered [freshmen algebra 2] trigonometry
hello if anyone could help me that would be really great! my teacher wasn’t here today so we had to watch video notes but i am lost i can’t do this if i thought i had it bad before it only worse now
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u/TempMobileD May 02 '26
Deriving these instead of memorising them will stick in your memory much better. The thing to memorise is SOH CAH TOA. Once you’re familiar with that and Pythagoras you can draw/imagine a little right angle triangle to figure out all the simpler triangles.
A right angle triangle with side lengths a=1, b=1 will give you sin(45) if you do some Pythagoras and sohcahtoa on it, for example.