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→Problems: the pound sign is not good for numbering these problems since it must have them close together to function properly, and they are hard to read close together
=Problems=
=Problems=
==Review Problems==
'''1.''' Using the definition of "limit" given above, show that <math>\lim_{x \rightarrow x_0} ax = x_0 \ </math>, assuming <math>a \ </math> is a constant.
'''2.''' Under the same assumptions as above, show that <math>\lim_{x \rightarrow x_0} ax^n = ax_0^n \ </math>
'''3.''' Use [[mathematical induction]] to show that <math>\lim_{x \rightarrow x_0} a_n x^n + ... + a_1 x + a_0 = a_n x_0^n + ... + a_0 \ </math>.
You may assume that for any functions <math>A, B, \lim_{x \rightarrow x_0} (A(x)+B(x)) = \lim_{x \rightarrow x_0} A(x)+ \lim_{x \rightarrow x_0} B(x) \ </math> and <math>\lim_{x \rightarrow x_0} (A(x)B(x)) = \lim_{x \rightarrow x_0} A(x) \times \lim_{x \rightarrow x_0} B(x) \ </math>.
'''4.''' Using the definition of "limit" given above, find <math>\lim_{x \rightarrow 0} \frac{\sin(x)}{x} \ </math>.