Shoutbox

quote:

---

Originally posted by John Anderton

quote:

---

Originally posted by andrewdodd13
Well... the square root of x^2 1/x^2 is just x + 1/x isn't it?

---

wtf?
If that were true most of the maths problems in the world would be solved in a few steps

---

Yeah, wasn't really thinking straight when I wrote that...

I used an on-line integrator (its the first hit for "Online integrator" on google ) and it gave (3x^4 - 1) ^-1 . I don't think it's right - doesn't differentiate to the correct result as far as I can tell:

- (12x^3) / ((3x^4)^2)

I'll have another bash it via substitution, but I think integration by parts is the way to go... but I can't do that yet. ^_^.