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Prince North Læraðr
Prince North Læraðr
18:35
@Deusovi Are you free? I need a bit of help with math
Deusovi
Deusovi
sure
Prince North Læraðr
Prince North Læraðr
We're dealing with parametric equations, and I'm kind of confused on how to eliminate the parameter in certain scenarios
Deusovi
Deusovi
can't promise a lot because i'm working on my own homework but i can try to help
Prince North Læraðr
Prince North Læraðr
Like for example
@Deusovi Oh, I can come back later. I have other stuff I can work on
Deusovi
Deusovi
nah i'll be busy all day - this is probably the best time
Prince North Læraðr
Prince North Læraðr
18:36
Oh, okay
So the equation is x=4t^2, y=8t^3. They're asking me to eliminate the parameter, but I feel like I'm doing it wrong
Deusovi
Deusovi
go on?
Prince North Læraðr
Prince North Læraðr
So, I was able to simplify it down to sqrt(x)=∛(y)
Because √(x)/2=t, ∛(y)/2=t, so √(x)=∛(y)
But the answer was x^3=y^2
Deusovi
Deusovi
you've run into a problem with √x - you assumed that t was positive
but if you wrote ±√x = ³√y, that would be correct and equivalent to the answer they gave
Prince North Læraðr
Prince North Læraðr
Oh... but how do you get to x^3=y^2?
Deusovi
Deusovi
raise both sides to the 6th power
Prince North Læraðr
Prince North Læraðr
18:42
Ohhhhh
Duh
I forgot my exponent rules
Okay, thank you!
(I shall cease to bother thee from thine homework now :P)
Deusovi
Deusovi
no problem!

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