#Calculus help needed!
53 messages · Page 1 of 1 (latest)
|a-x²| ≤ 5
may I ask why? And how can I deviate and produce an answer afterward?
that was nonsense
pardon?
I wrote nonsense
it do be like that sometimes
Are you familiar with circles?
Like x² + y² = r²
I do not, however I can learn and understand it in the process
Well my thought is that using x² + y² = r²
We can solve for y = ± √(r² - x²)
You're thinking now ok
but hear me out
r is the radius right
yeah
and the circle is centred
So let's say what should be r if we want it to have radius 5?
it'd be 5
r = 5
and knowing how a circle looks like
it's only defined between that domain
between -5 and 5
so you'd get y = ± √(5² - x²) = ± √(25 - x²)
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
that'd be one approach
great idea though I'll give you that
another one is a - x² is basically a parabola open downwards
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
or basically has its roots between -5 and 5
,w plot -x^2
imagine this
and how should be so that the parabola is positive between -5 and 5
a should be a positive value
ohhhh right, thats one way to put it
aight, thanks man
have a great day and thanks for the help
really? ok
glad for the help lol
i confused you first so i was like i couldnt let you down like that😅
tbh i feel that
yeah now I think i have to find more exercises like this to try this out lol
it was a weird way of me saying that
you didn't let no one down even when you answered wrong dawg, tbh any help is appreciated in all capacity
cheer up and have a great day man
i mean thats how I usually roll
gladly 
.solved