Exercises
Skip to main content \(\require{cancel}\newcommand{\dee}[1]{\mathrm{d}#1}
\newcommand{\half}{ \frac{1}{2} }
\newcommand{\ds}{\displaystyle}
\newcommand{\ts}{\textstyle}
\newcommand{\es}{ {\varnothing}}
\newcommand{\st}{ {\mbox{ s.t. }} }
\newcommand{\pow}[1]{ \mathcal{P}\left(#1\right) }
\newcommand{\set}[1]{ \left\{#1\right\} }
\newcommand{\lin}{{\text{LIN}}}
\newcommand{\quot}{{\text{QR}}}
\newcommand{\simp}{{\text{SMP}}}
\newcommand{\diff}[2]{ \frac{\mathrm{d}#1}{\mathrm{d}#2}}
\newcommand{\bdiff}[2]{ \frac{\mathrm{d}}{\mathrm{d}#2} \left( #1 \right)}
\newcommand{\ddiff}[3]{ \frac{\mathrm{d}^#1#2}{\mathrm{d}{#3}^#1}}
\renewcommand{\neg}{ {\sim} }
\newcommand{\limp}{ {\;\Rightarrow\;} }
\newcommand{\nimp}{ {\;\not\Rightarrow\;} }
\newcommand{\liff}{ {\;\Leftrightarrow\;} }
\newcommand{\niff}{ {\;\not\Leftrightarrow\;} }
\newcommand{\De}{\Delta}
\newcommand{\bbbn}{\mathbb{N}}
\newcommand{\bbbr}{\mathbb{R}}
\newcommand{\bbbp}{\mathbb{P}}
\newcommand{\cI}{\mathcal{I}}
\newcommand{\cR}{\mathcal{R}}
\newcommand{\cV}{\mathcal{V}}
\newcommand{\Si}{\Sigma}
\newcommand{\arccsc}{\mathop{\mathrm{arccsc}}}
\newcommand{\arcsec}{\mathop{\mathrm{arcsec}}}
\newcommand{\arccot}{\mathop{\mathrm{arccot}}}
\newcommand{\erf}{\mathop{\mathrm{erf}}}
\newcommand{\smsum}{\mathop{{\ts \sum}}}
\newcommand{\atp}[2]{ \genfrac{}{}{0in}{}{#1}{#2} }
\newcommand{\ave}{\mathrm{ave}}
\newcommand{\llt}{\left \lt }
\newcommand{\rgt}{\right \gt }
\newcommand{\YEaxis}[2]{\draw[help lines] (-#1,0)--(#1,0) node[right]{$x$};\draw[help lines] (0,-#2)--(0,#2) node[above]{$y$};}
\newcommand{\YEaaxis}[4]{\draw[help lines] (-#1,0)--(#2,0) node[right]{$x$};\draw[help lines] (0,-#3)--(0,#4) node[above]{$y$};}
\newcommand{\YEtaxis}[4]{\draw[help lines] (-#1,0)--(#2,0) node[right]{$t$};\draw[help lines] (0,-#3)--(0,#4) node[above]{$y$};}
\newcommand{\YEtaaxis}[4]{\draw[help lines] (-#1,0)--(#2,0) node[right]{$t$}; \draw[help lines] (0,-#3)--(0,#4) node[above]{$y$};}
\newcommand{\YExcoord}[2]{\draw (#1,.2)--(#1,-.2) node[below]{$#2$};}
\newcommand{\YEycoord}[2]{\draw (.2,#1)--(-.2,#1) node[left]{$#2$};}
\newcommand{\YEnxcoord}[2]{\draw (#1,-.2)--(#1,.2) node[above]{$#2$};}
\newcommand{\YEnycoord}[2]{\draw (-.2,#1)--(.2,#1) node[right]{$#2$};}
\newcommand{\YEstickfig}[3]{
\draw (#1,#2) arc(-90:270:2mm);
\draw (#1,#2)--(#1,#2-.5) (#1-.25,#2-.75)--(#1,#2-.5)--(#1+.25,#2-.75) (#1-.2,#2-.2)--(#1+.2,#2-.2);}
\newcommand{\IBP}[7]{
\begin{array}{|c | l | l |}
\hline
\color{red}{\text{Option 1:}}
& u=#2
&\color{red}{\dee{u}=#3 ~ \dee{#1}}
\\
& \dee{v}=#5~\dee{#1}
&\color{red}{v=#7}
\\
\hline
\color{blue}{\text{Option 2:}}
& u=#5
&\color{blue}{\dee{u}=#6 ~ \dee{#1}}
\\
&\dee{v}=#2 \dee{#1}
&\color{blue}{v=#4}
\\
\hline
\end{array}
}
\renewcommand{\textcolor}[2]{{\color{#1}{#2}}}
\newcommand{\trigtri}[4]{
\begin{tikzpicture}
\draw (-.5,0)--(2,0)--(2,1.5)--cycle;
\draw (1.8,0) |- (2,.2);
\draw[double] (0,0) arc(0:30:.5cm);
\draw (0,.2) node[right]{$#1$};
\draw (1,-.5) node{$#2$};
\draw (2,.75) node[right]{$#3$};
\draw (.6,1.1) node[rotate=30]{$#4$};
\end{tikzpicture}}
\newcommand{\lt}{<}
\newcommand{\gt}{>}
\newcommand{\amp}{&}
\)
Subsection 1.3.2 Exercises
Exercises — Stage 1
1
Given the function shown below, evaluate the following:
\(\displaystyle \lim_{x \rightarrow -2} f(x)\)
\(\displaystyle \lim_{x \rightarrow 0}f(x)\)
\(\displaystyle \lim_{x \rightarrow 2}f(x)\)
2
Given the function shown below, evaluate \(\displaystyle \lim_{x \rightarrow 0} f(x)\text{.}\)
3
Given the function shown below, evaluate:
\(\displaystyle \lim_{x \rightarrow -1^{-}} f(x)\)
\(\displaystyle \lim_{x \rightarrow -1^{+}} f(x)\)
\(\displaystyle \lim_{x \rightarrow -1} f(x)\)
\(\displaystyle \lim_{x \rightarrow -2^{+}} f(x)\)
\(\displaystyle \lim_{x \rightarrow 2^{-}} f(x)\)
4
Draw a curve \(y=f(x)\) with \(\displaystyle\lim_{x \rightarrow 3}f(x)=f(3)=10\text{.}\)
5
Draw a curve \(y=f(x)\) with \(\displaystyle\lim_{x \rightarrow 3}f(x)=10\) and \(f(3)=0\text{.}\)
6
Suppose \(\displaystyle\lim_{x \rightarrow 3} f(x)=10\text{.}\) True or false: \(f(3)=10\text{.}\)
7
Suppose \(f(3)=10\text{.}\) True or false: \(\displaystyle\lim_{x \rightarrow 3} f(x)=10\text{.}\)
8
Suppose \(f(x)\) is a function defined on all real numbers, and \(\displaystyle\lim_{x \rightarrow -2} f(x)=16\text{.}\) What is \(\displaystyle\lim_{x \rightarrow -2^-} f(x)\text{?}\)
9
Suppose \(f(x)\) is a function defined on all real numbers, and \(\displaystyle\lim_{x \rightarrow -2^-} f(x)=16\text{.}\) What is \(\displaystyle\lim_{x \rightarrow -2} f(x)\text{?}\)
Exercises — Stage 2
In Questions 1.3.2.10 through 1.3.2.17 , evaluate the given limits. If you aren't sure where to begin, it's nice to start by drawing the function.
10
\(\displaystyle\lim_{t \rightarrow 0} \sin t\)
11
\(\displaystyle\lim_{x \rightarrow 0^+} \log x\)
12
\(\displaystyle\lim_{y \rightarrow 3} y^2\)
13
\(\displaystyle\lim_{x \rightarrow 0^-} \dfrac{1}{x}\)
14
\(\displaystyle\lim_{x \rightarrow 0} \dfrac{1}{x}\)
15
\(\displaystyle\lim_{x \rightarrow 0} \dfrac{1}{x^2}\)
16
\(\displaystyle\lim_{x \rightarrow 3} \dfrac{1}{10}\)
17
\(\displaystyle\lim_{x \rightarrow 3} f(x)\text{,}\) where \(f(x)=\left\{
\begin{array}{ll}
\sin x&x\leq 2.9\\
x^2&x \gt 2.9
\end{array}
\right.\text{.}\)
login
