#Calculus help needed!

53 messages · Page 1 of 1 (latest)

ocean wedgeBOT
bright latch
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|a-x²| ≤ 5

ruby ingot
ruby ingot
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pardon?

bright latch
ruby ingot
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it do be like that sometimes

bright latch
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Like x² + y² = r²

ruby ingot
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I do not, however I can learn and understand it in the process

bright latch
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Well my thought is that using x² + y² = r²

We can solve for y = ± √(r² - x²)

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You're thinking now ok

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but hear me out

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r is the radius right

ruby ingot
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yeah

bright latch
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and the circle is centred

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So let's say what should be r if we want it to have radius 5?

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it'd be 5

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r = 5

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and knowing how a circle looks like

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it's only defined between that domain

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between -5 and 5

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so you'd get y = ± √(5² - x²) = ± √(25 - x²)

ruby ingot
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oh yeah It kind of makes sense, though are there proof that it always work though? I mean this way is kind of foreign to me and I'm not too sure about the legitimate of it

bright latch
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that'd be one approach

ruby ingot
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great idea though I'll give you that

bright latch
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another one is a - x² is basically a parabola open downwards

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so basically you should ask yourself how should a be (a is the shifts up or down) so that the parabola is positive between -5 and 5

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or basically has its roots between -5 and 5

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,w plot -x^2

bright latch
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imagine this

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and how should be so that the parabola is positive between -5 and 5

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a should be a positive value

ruby ingot
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ohhhh right, thats one way to put it

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aight, thanks man

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have a great day and thanks for the help

bright latch
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really? ok

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glad for the help lol

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i confused you first so i was like i couldnt let you down like that😅

ruby ingot
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LMAO tbh

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when you said "really?"

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i got a sudden surge of concern

bright latch
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tbh i feel that

ruby ingot
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yeah now I think i have to find more exercises like this to try this out lol

bright latch
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it was a weird way of me saying that

ruby ingot
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you didn't let no one down even when you answered wrong dawg, tbh any help is appreciated in all capacity

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cheer up and have a great day man

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i mean thats how I usually roll

bright latch
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thank you appreciate people like you

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you just made my day

ruby ingot
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gladly cowboyflonshed

bright latch
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.solved