Integration: Solving Homework on $\int \frac{sin(\sqrt{x})}{\sqrt{x}} dx$

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SUMMARY

The discussion focuses on solving the integral $\int \frac{sin(\sqrt{x})}{\sqrt{x}} dx$ using the substitution method. The key substitution is $u = \sqrt{x}$, which simplifies the integral to $2 \int sin(u) du$. This approach effectively transforms the original problem into a more manageable form, allowing for straightforward integration of the sine function.

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Ed Aboud
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Homework Statement



[tex]\int \frac{sin(\sqrt{x})}{\sqrt{x}} dx[/tex]

Homework Equations


The Attempt at a Solution



I'm not too sure how to approach this. The only thing that rings a bell at this moment is

[tex]\lim_{x\to\0} \frac{sinx}{x} = 1[/tex]

and I don't feel that it is of any relevance.

Thanks
 
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Use the substitution u = √x. Whats du?
 
So [tex]du = \frac{dx}{2\sqrt{x}}[/tex]

[tex]2 \int sin(u) du[/tex]

Cool, thanks.
 

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