

\magnification1200\footline{}
\centerline{\bf Math.~126 Quizz \#8}
\centerline{March 30, 1999}
\vskip10pt
\noindent

\def\frac#1#2{{{\textstyle#1}\over{\textstyle#2}}}
\def\isum#1{{\displaystyle{\sum_{n={#1}}^{\infty}}}\>}

\noindent
Determine which of the series below converge and which
diverge.
A brief indication of your reasoning should be given.
\settabs\+(A)A&\hskip1in&(A)A&%
\hskip1in&(A)A&\hskip1in&(A)A&\hskip1in\cr
\+{\rm (a)}&$\isum{1}\frac 1n$&{\rm (b)}&$\isum{1}\frac 1{\sqrt{n^3}}$&
{\rm (c)}&$\isum{0}\frac 1{2^n}$&{\rm (d)}&$\isum{1}\frac 1{n^2+1}$\cr

\end

Sent Mon Mar 29 07:53:39 EST 1999
