Barrons AP Calculus

3.

(b)

(c)

4.

Part B

(a)

By  the Ratio   Test,   the series  converges   when

Thus,   the radius  of  convergence is  2.

    is  an  alternating series. Since   

    and     it  converges   by  the

Alternating Series  Test.   Therefore   the error   is  less    than    the

magnitude   of  the first   omitted term:

See solution    for AB  2/BC    4.