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My mnemonic for remembering trig values (lemmy.ml)

submitted 2 months ago by SubArcticTundra@lemmy.ml to c/math@lemmy.ml

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(For the sake of intuition, 1/√0=0)

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[–] blind3rdeye@lemm.ee 1 points 4 days ago

I'm not sure I understand your mnemonic. It looks like you've got 1/sqrt(3) as one of your exact value for sine and cosine... but that surely isn't right.

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[–] Rentlar@lemmy.ca 4 points 2 months ago

My trick for this was:

0  30  45  60  90 deg
---------------------------
0  1   2   3   4

Sine function of the top equals half the square root of the bottom number. Cosine is just in reverse order.

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