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anonymous
 5 years ago
antiderivative of SQRT(1+(9x (x^3/3))^2)
anonymous
 5 years ago
antiderivative of SQRT(1+(9x (x^3/3))^2)

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0how you wanna do this lol the easy way or the hard way

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lets go with easy because this is the part of problems i can never do

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0\[\sqrt{1+(9x\frac{x^3}{3})^2}\] lets start by making sure we got the right problem is this it?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0well; its gonna be a trig sub that turns to int(sec(x)) dx inthe end lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0omg i hate calculus lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lol...trig sub just cleans it up thats all

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea but i integrated this on my calculator and i still got the wrong answer

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0\[\int_{} \sqrt{1+tan^2(u)}du\] ;\[u= \frac{27x x^3}{3}\]

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0du = 273x^2/3 = 9x^2 dx; maybe that aint a good idea lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0but it shows me another idea lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea im not so good with substitution either

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0u = 9xx^3 ; du = 93x^2 dx {S} sqrt(1+(u/3)^2) du  9x^2 maybe?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0let me stare blindly at it for a few moments and let my thoughts congeal lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok im just trying to follow the process here

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we might be better of expanding and combining everything under the radical into one shot

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sure i couldnt go anymore wrong with this problem lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0\[\frac{\sqrt{x^6 + 729x^2 54x^4 +9}}{3}\] is what i get with that ...maybe

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea i got something completely off but u r def prolly right lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0now we can factor under the radical to simply fy things

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sooo...how should we factor it :) all polynomials higher then degrees 2 can factor to linears and or irreducibla quads

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i honestly have no idea lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ima try some synthetic stuff and hope i get lucky

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol ok im attempting to do other problems..im going to fail this quiz tomorrow lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0well, the good news is; wolfram couldnt even figure it out lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0whos that? some really smart kid im guessing :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0www.wolframalpa.com type in: int(sqrt(1+(9x(x^3)/3)^2))dx

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0o gotcha lol..ok well maybe i went wrong somewhere..the question is find the length of the arch of the parabola y=9x^2 that lies above the xaxis

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0.... why you wanna keep secrets from me; i cant read your mind

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you had the wrong stuff inputed lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i did?? well the equation we use is SQRT(1+(dy/dx)^2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0\[\int\limits_{} \sqrt{1 + [f'x]^2} dx\]

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0and is the derivative of 9x^2 = to the integral of 9x^2?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea and the derivative of 9x^2 is 9x(x^3/3) right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ooo i did the anti derivative didnt i ..i do that all the time because we keep having to switch from derivativeto anti derivative lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0anti derivative is a useless term; later chapters call them what they are inegrals lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea that what we do when we use integrals

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0{S} sqrt(1+4x^2) dx ; [a,b] whatever your interval s its up there some where

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok now i got it..wow i am retarded lol i do that a lot to

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so now how to integrate SQRT(1+4x^2)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0easier than you would that other monstrocity lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got 2/3(1+4x^2)^(3/2) and then do you also multiply that by the derivative of the inside??

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sqrt(1+tan^2(u)) sec^2(u) du  4 sec(u). sec^2(u) du  4 sec^3(u) du  4

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0got that outta whack a little

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok i g2g i got soccer..but thanks for the help :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=int%28+sqrt%28+1%2B+%282x%29^2%29%29+dx+from+3+to+3
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