5) 

Determine convergence or divergence of Typesetting:-mrow(Typesetting:-munderover(Typesetting:-mo(   by using an appropriate test on Maple.  The notation   means 1*3*5*7*...*(2n-3)*(2n-1).     (Hint: to multiply things together, one can use the "product" command in exactly the same way we use the "sum" command.)