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Help me solve this integral

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Thread replies: 23
Thread images: 3

File: Ecuacion..jpg (32KB, 936x460px) Image search: [Google]
Ecuacion..jpg
32KB, 936x460px
Hello someone can help me solve this integral, I get the result, but I can not do it by the methods I know and nobody I know can do, in another forum could not solve it and in the books I have not found a method to solve it. Thank you <3 <3
>>
well you can pull the 0.5 out
>>
>>8942146
Let me go try it. I'll see if I can get you an answer.
>>
>>8942146
there's website called integral calculator which shows al steps. google it
>>
File: ecuationx2e.jpg (35KB, 936x460px) Image search: [Google]
ecuationx2e.jpg
35KB, 936x460px
Yes, i can pull the 0.5 out :v-- but the problem is the 10x..
I forgot to put the numbers of the definite integral goes from 0 to 12
>>
>>8942166
Can you substitute the radical and solve for x in terms of your substitution?
>>
>>8942146
It seems like the antiderivative for this problem cannot be computed. I tried a few techniques on my own and nothing worked. So I plugged it into two seperate integral calculators and both came back with nothing. So it seems like this cannot be done using standard techniques.
>>
>>8942146
we're not here to do your homework you faggot retard. get out.
>>
I have a friend with a definite integrals calculator, and if he gives a value, that if he does not remember correctly is 46.9 or 49.6. But the problem is that we do not know how to solve it.
>>
This is not my homework, it is a problem that I found in a mechanic book, that to find the load has to be the integral of that equation. And I'm very curious how to do it.
>>
>>8942202
The antiderivative can't be found. Many functions don't have antiderivatives we know how to find. Are you sure this was in the book? Did you copy it down wrong?
>>
>>8942202
approximate it
>>
>>8942227
This. Try using riemann sum.
>>
>>8942230
"Easier": try a Taylor Series approximation and go with that
>>
File: Image 1.jpg (213KB, 678x403px) Image search: [Google]
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Yes I copy it well, here is a picture of the book, the statement in Spanish, what it says is: "The wing of the airplane of retropopulsion is subjected to the distribution of loads shown Determine the force resulting from these charges and specify Its locality measured from A. "

The distributed load is placed in an integral to find the equivalent point load of the same
>>
>>8942257

Solve sqrt(16+x^2)

you should end up with

int sqrt(11x_4)

then do a u substitution

the answer is 48
>>
>>8942146
if x^2 is big, reduce 16 + x^2 to just x^2, boom trivial integration.

if x^2 is small, it's literally a linear integral as.

If it's inbetween, take the big and small approx and average them out, works erry time in practice

signed phd math
>>
>>8942386

You're definitely not a phd in math
>>
>>8942146
Not possible.
>>
Substitute [eqn] x=4 \tan \theta [/eqn], integrate by parts later.
>>
X^2+16=0
X=4i
X1=-4i
Then you will get
16+x^2=(x+4i)*(x-4i)
Now replace the complex number by its euler substitution and you should get a sinousoidial function inside the square root
>>
>>8942459
>>8942478

Both wrong

>>8942386

That advice is pointless 12^2+4 is obviously something you shouldnt approximate in this case

>>8942293

Correct and coincides with OP's final answer


>>8942230
why would someone who looks like a 1st year engineering undergrad be doing riemann sums
>>
>>8942553
Whats the sqrt(16 + x^2)?
Thread posts: 23
Thread images: 3


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