To prove that sine is continuous, we need to show that limx l a sin x sin a for every
Chapter 2, Problem 64(choose chapter or problem)
To prove that sine is continuous, we need to show that limx l a sin x sin a for every real number a. By Exercise 63 an equivalent statement is that lim h l0 sinsa 1 hd sin a Use (6) to show that this is true.
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