Our daughter’s pre-calc class was given this sheet of 59 trig identities to verify over Thanksgiving break. Her teacher says this work is important for understanding calculus. I call BS. This is just a massive amount of meaningless busywork that will help nobody.

Nov 28, 2020 · 6:51 PM UTC

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FYI, if you are wanting to try and solve any of the identities on the previous sheet, you will find these basic trig facts helpful.
Replying to @hal_pomeranz
Just draw a circle and remember Euclide théorème and the definition of sin cos and tan and you will find all of them. Mathematics are the science of how use your mind not how use your memory
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Yes, I agree. Unfortunately that’s not the way our kids are being taught in the USA.
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Show me in the AP Calc textbook where any of the identities on our daughter’s worksheet are at all useful.
Replying to @hal_pomeranz
My son is a HS junior taking AP calc 2 (calc BC). I showed him this sheet. He said the trig identities are "super helpful" when you're doing integrals. He loves calc. He loves linear algebra more, but still...
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Not the trig identities on that sheet though