Find Each of the Following Limits or Explain Why It $\lim _ { x \rightarrow 0 } \frac { x - \sin x } { x ^ { 3 } }$

question 172

Essay

Find each of the following limits or explain why it does not exist.(a) $\lim _ { x \rightarrow 0 } \frac { x - \sin x } { x ^ { 3 } }$ (b) $\lim _ { x \rightarrow \infty } e ^ { - x } x ^ { 2 }$ (c) $\lim _ { x \rightarrow 0 ^ { + } } x ^ { \frac { 2 } { x } }$

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