- #1
jdc15
- 40
- 0
Homework Statement
This isn't really out of a textbook but rather is my own inquiry, but here goes:
y=t2
x=t3
Find [tex]\int{y}dx[/tex]
Homework Equations
Integration rules maybe?
The Attempt at a Solution
I'm pretty sure the answer is [tex]y\int{}dx=y(x+C)=t^2(t^3+C)[/tex] but why can't I go [tex]dx=3t^2dt[/tex] and then [tex]\int{y}dx=3\int{t^4}dt=3t^5/5+C[/tex]? Obviously one is right and one is wrong (or both wrong) but why is this so?
Thanks in advance.