Talk:2070: Trig Identities

Explain xkcd: It's 'cause you're dumb.
Revision as of 20:12, 9 November 2018 by 162.158.79.101 (talk)
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I am confused by the insect line. This seems to be true only if s=t. 141.101.96.209 19:03, 9 November 2018 (UTC)

That one and the `cas` aren't making any sense to me. GreatBigDot (talk) 20:02, 9 November 2018 (UTC)