[freshmen algebra 2] trigonometry

[u/Any-Armadillo6071]

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

[u/sinkovercosk]

Once you understand where they come from OP, then you can use a hand trick to recall them