Error: Question1.8(b)evaluatethesum1xi=0i 4isolutionlets=p1i=0i 4i.s=1 4 2 42 3 43 :::4s=1 2 4 3 42 :::subtractingthe Rstequationfromthesecondgives3s=1 1 4 1 42 :::weknowfrompart(a)that3s=4 3 - PowerPoint Presentations and PDF Documents