Calculus extra credit problem using the rules only of substitution by parts and substitution?


Posted July 17th, 2010 by admin 1 Comment »
credit problem
Albert asked:


Hi I have an extra credit problem in my level one calculus class. I need help with it and we can only use two methods substitution by parts and substitution. The problem is x^3(x^2-1)^10. We have to find the integral of this problem. Can anyone help me by only using these two methods showing all work? Thanks in Advance.

Can anyone help with solve this extra credit math problem?


Posted May 4th, 2010 by admin 1 Comment »
credit problem
Tomcat6 asked:


I have an extra credit problem for math and I have tried to solve it and cannot get past this one step.

If the sum of two numbers is 1 and the sum of the cubes of the numbers is 3, what is the sum of the squares of the numbers? (fractional answer, no decimals)

So I made two equations.

a+b=1
a^3+b^3=3

I have tried substitution and everything and I cannot get it.