/sci/ - Science & Math

Anonymous Wed Jan 15 17:04:33 2020 No.11304693 [View]
File: 99 KB, 1361x605, pic.jpg [View same] [iqdb] [saucenao] [google]

>>11304680
Oh, I see. It's not about the easiest way of integration tho, I'm just starting to learn about multiple integrals so this is just practising.
I think this particular example is supposed to show me two ways of determining the borders (and to show me which route I should take in the future I guess), and I'm not stuck on the integral part, but on the simple geometry part about which I'm asking.
The circled part on the picture. How do I know do I take the + or -?

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/sci/ - Science & Math

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