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• \(\dfrac{d}{dx}[\sin x] = \cos x + C\)

• \(\dfrac{d}{dx}[\cos x] = -\sin x + C\)

• \(\dfrac{d}{dx}[\tan x] = \sec^{2} x + C\)

• \(\dfrac{d}{dx}[\sec x] = \sec x \tan x + C\)

• \(\dfrac{d}{dx}[\csc x] = -\csc x \cot x + C\)

• \(\dfrac{d}{dx}[\cot x] = -\csc^{2} x + C\)

• https://openstax.org/books/college-algebra-2e/

Stoic wrote: Fri Jul 31, 2026 9:56 am Well, Germans had a pretty good life since 1933. In fact so good that they had money to create a strong military.