Dane4275 Dane4275 30-11-2022 Mathematics contestada Find the values of the following sums. Use formulas for the sum of the firstnintegers, the firstnsquares, and the firstncubes as needed to evaluate these sums. a.k=1â33â9=b.k=1â18â5k=c.k=1â15â7k 2=d.k=1â16â8k 3=