Tuesday

September 30, 2014

September 30, 2014

Posted by **hajja** on Friday, January 31, 2014 at 10:04pm.

- integral calculus -
**Steve**, Friday, January 31, 2014 at 10:56pmIf you mean

∫[x,4] x/(x-4) dx

that's a bit unusual to have the variable of integration as one of the limits. But ok, let's work it out as-is.

∫x/(x-4) dx = x + 4 log(x-4)

Evaluating that at 4 and x, we have

(4+4log(0))-(x+4log(x-4))

Looks like -∞ to me. That upper limit of 4 is a killer

**Answer this Question**

**Related Questions**

integral calculus - Evaluate the following intergal:- integral of [Mvdv] with ...

integral calculus.. - Evaluate the following integral:- Mvdv , with upper ...

Calculus - integral -oo, oo [(2x)/(x^2+1)^2] dx (a) state why the integral is ...

math - Evaluate the following integral: Integral lower limit 0 and upper limit 2...

CALCULUS II - Hi, I needed help with this improper integral. lower limit : 2 ...

Calculus - Express the limit as a definite integral on the given integral, [5pi,...

integral calculus.. - Evaluate the following intergal:- Mvdv , with upper ...

Calculus Fundamental Theorem - Evaluate the definite integral. function: x+13 ...

calculus - 1. integral -oo, oo [(2x)/(x^2+1)^2] dx 2. integral 0, pi/2 cot(theta...

Calculus Area between curves - Evaluate the definite integral: sqrt(8-2x) lower ...