Here's the question you clicked on:
yasmin95
differentiate in respect to x x^2/x-1 @mark_o.
v Du - u Dv use the formula D(u/v)= ---------------- v^2
yeah i did lol but i think i stuffed something up, can you please solve it for me
let u=x^2, u= x-1, then (x-1)2x - x^2 ----------------- (x-1)^2 can you continue that pls...
@sirm3d, do you have something to help yasmin plzz? you can go ahead and reply ... :D
\[\large v=x-1\\\large Dv = 1 - 0 = 1\\\large u=x^2\\\large Du=2x\] just sub the expressions u, Du, v, and Dv in \[\large D\left(\frac{u}{v}\right)=\frac{v Du - u Dv}{v^2}\] as given by @mark_o.