Part I: Answer each of the following questions by encircling your choice [each 2 points].
\sum_(n=1)^(\infty ) ((n^(2)+n)/(2n^(2)+1))^(n)
converges.
,T,F
The series
\sum_(n=1)^(\infty ) (n^(2)+1)/(n^(5)+n^(2)\sqrt(3))
converges by Limit Comparison Test against the p-series
\sum_(n=1)^(\infty ) (1)/(n^(3))
. T
,
F The series
\sum_(n=1)^(\infty ) ((-1)^(n))/(n)
converges absolutely.
,F
The series
\sum_(n=1)^(\infty ) ((n!)^(n))/(n^(2n))
converges.
,F
The Maclaurin series of
f(x)=ln(1+(1)/(2)x^(2))
at
a=0
is given by
\sum_(n=1)^(\infty ) (x^(2n+2))/(2^(n)(2n+2))
.
,T,F
If
\Sigma a_(n)
is divergent, then
\Sigma |a_(n)|
is divergent.
,T,F
\sum_(n=1)^(\infty ) arctan((n^(2))/(1+n))
diverges.
,F
The radius of convergence of the series
\sum_(n=0)^(\infty ) ((n+1)(x-2)^(2))/((2n+1)!)
is
R=\infty
.
,F
Part I: Answer each of the following questions by encircling your choice [each 2 points].
\sum_(n=1)^(\infty ) ((n^(2)+n)/(2n^(2)+1))^(n)
converges.
,F
The series
\sum_(n=1)^(\infty ) (n^(2)+1)/(n^(5)+n^(2)\sqrt(3))
converges by Limit Comparison Test against the p-series
\sum_(n=1)^(\infty ) (1)/(n^(3))
. T
F
The series
\sum_(n=1)^(\infty ) ((-1)^(n))/(n)
converges absolutely.
,F
The series
\sum_(n=1)^(\infty ) ((n!)^(n))/(n^(2n))
converges.
,F
The Maclaurin series of
f(x)=ln(1+(1)/(2)x^(2))
at
a=0
is given by
\sum_(n=1)^(\infty ) (x^(2n+2))/(2^(n)(2n+2))
.
,T,F
If
\Sigma a_(n)
is divergent, then
\Sigma |a_(n)|
is divergent.
,T,F
\sum_(n=1)^(\infty ) arctan((n^(2))/(1+n))
diverges.
,F
The radius of convergence of the series
\sum_(n=0)^(\infty ) ((n+1)(x-2)^(2))/((2n+1)!)
is
R=\infty
.
,F
The Taylor Series for the following function
f(x)=(1)/(2x)
about
a=0
is
(1)/(6)\sum_(n=0)^(\infty ) ((x+3)/(3))^(n)
.
,T,F
If the interval of convergence of a power series
\sum_(n=0)^(\infty ) c_(n)x^(n)
is
[-9,11)
, then the radius of conver- gence of the series
\sum_(n=0)^(\infty ) (c_(n))/(n+1)x^(n+1)
is
R=11.,T,F