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Science Memes @mander.xyz

Gollum @feddit.de

2y ago

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14 comments

Nice.

Can someone explain this? Integral from 10 to 13 of 2x? It's been a long time since calculus for me, but isn't that like 2x² + c or something like that?
- Is this Wolfram Alpha?
- Just x²+c, but when you're integrating between limits the +c doesn't matter - so you're just left with the difference between 13² and 10²...
  
  It isn't that it doesn't matter, constant of integration is only used for indefinite integrals.
- The integral of 2xdx is x^2 + c, and it’s evaluated from 10 to 13. So you’d have the following:
  (13^{2 + c) - (10}2 + c).
  The c’s cancel. I’ll leave you to do the rest…
  
  69

le epic 69

14 comments