Recent content by judahs_lion

Actually I think I did do that. Not sure if u can see on the side where i did u(2) =5 and u(5) = 26.

I see where I messed up. I was dividing u^1/2 by 2 instead of 1/2. Thanks anyways.

Homework Statement integrate (xdx)/sqrt(1-x^2) on the integreal [2,5] Homework Equations integral u^n(du) = u^n+1/(n+1) The Attempt at a Solution I'm no good at using latex so I scanned in my work. I get .716 but when I check with my calculator it comes out as 2.863

Was just bout to say that. Got homework due for two other class tommorow. Thanx for all your help @ everyone

2[{u^(3/2)}/(3/2)}] so [lnt^2] /3 ?

yea, i don't know have to use symbols in here.

2(udu) ?

du = 1/(2t). Only thing i can think of is bringing the 1/2 down but don't see how that helps me.

I just don't see it. Don't see du inside the original function.

not really. I am thinking insted of it substituting to udu, it would be something like u((1/2)du)?

Thank you

but i thought the 1/2 would be eliminated because it is a constant

Is that implicit differentiation?

that would make give me 1/2lnt (1/t), which is udu +C. so it breaks down to u^2/2 + C?

actually du = 1/t