Thursday
July 30, 2015

Homework Help: college math

Posted by dave on Friday, August 13, 2010 at 1:02pm.

I do not understand a problem from a text book or how to solve the problem for the answer. Could shomeone show me the steps (show work) on how to solve this question.

The sum of the intergers from 1 through n is n(n+1)/2. the sum of the squares of the intergers from 1 through n is n(n+1)(2n+1)/6. The sum of the cubes of the integers from 1 through n is n squared(n+1)squared/4. Use the appropriate expressions to find the following values.
(A). The sum of the integers from 1 through 30.
(B) The sum of the squares of the integers from 1 through 30
(C) The sum of the cubes of integers from 1 through 30.
(D) The square of the sum of the integers from 1 though 30.
(E) The cube of the sum of integers from 1 through 30.
I's sure its much easier than what I am making it out to be. I tried working the problems but am lost in what it' asking.

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