i need to solve from a to d

1. State whether the given sums are equal or unequal. 10 10 a. :7, and Z 1:: i=1 k=1 10 15 b. Eviand Egg5) 101 0.22:7; (i1)andj:::(j-ll)j d.:1:'i(i1)and:0;(k2 In the following exercises, use the rules for sums of powers of integers to compute the sums