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Maths question

Leinsterr · 2013-02-01 17:06:13

I dont know if this a question that comes up on the leaving cert but i really need the answers and explanations to these questions on arithemetic progression. They are: Caluclate the sums: 1(i) 1(3)+2(4)+3(5)+...+n(n+2) (ii) 1(3)(3)+2(4)(6)+3(5)(7)+...+n(n+2)(n+4) Thanks

01-02-2013 5:06pm

#1

Leinsterr

Banned (with Prison Access) Posts: 401 ✭✭

Join Date: April 2012

Posts: 351

I dont know if this a question that comes up on the leaving cert but i really need the answers and explanations to these questions on arithemetic progression. They are:

Caluclate the sums:

1(i) 1(3)+2(4)+3(5)+...+n(n+2)
(ii) 1(3)(3)+2(4)(6)+3(5)(7)+...+n(n+2)(n+4)

Thanks

0