14. Proving the Limits of Trigonometric Functions

Here we wipe out all of the proofs for the limits of trigonometric functions in one swoop, based on the assumption that the limit of sine exists. While chronologically, it makes more sense to prove the limit of sine first, we felt it better like this because sine is very hard while the rest of the functions are easy if you have sine and take barely any time.

[laplaceha]

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