anonymous
  • anonymous
Write the definite integral for the summation
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
@LynFran @mathway @mathmate @jim_thompson5910
anonymous
  • anonymous
soo im not really sure what to do ....

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anonymous
  • anonymous
@tkhunny @Michele_Laino @ganeshie8 @Hero @nincompoop
anonymous
  • anonymous
this a simple Riemann sum with uniform partition of the domain of integration; we have here that \(\Delta x=3/n\) and it looks like we're integratign the function \(x\mapsto x^2\) by sampling the points \(x_k=4+k\Delta x=4+3k/n\), so the domain of integration is between \(4\) and \(4+3=7\): $$\lim_{n\to\infty}\sum_{k=1}^n (x_k)^2\cdot \Delta x=\int_4^7 x^2\, dx$$
anonymous
  • anonymous
that actually makes sense, thank you !

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