Thread: Not by separating variables

Here's the equation
how is this one done separating variables seems impossible

Originally Posted by phycdude

Here's the equation
how is this one done separating variables seems impossible

Doesn't cancel in each term? Was this the original problem?

Originally Posted by Danny

Doesn't cancel in each term? Was this the original problem?

well thats what beats me too , i have no idea whether that would be legitimate ,
now this was not the question itself, i was just wondering, but here is what drove me to ask ,
MathBin.net - Untitled
if u like i can post the stuff here, im stumped.

Originally Posted by phycdude

well thats what beats me too , i have no idea whether that would be legitimate ,
now this was not the question itself, i was just wondering, but here is what drove me to ask ,
MathBin.net - Untitled
if u like i can post the stuff here, im stumped.

Yes, of course that's legitmate. Your equation is simply [tex]\frac{dx}{y}= \frac{dy}{x}[quote] which is the same as xdx= ydy.

[QUOTE=HallsofIvy;409885]Yes, of course that's legitmate. Your equation is simply [tex]\frac{dx}{y}= \frac{dy}{x}

which is the same as xdx= ydy.

thanks, well i was wondering since pathlines are given by and the same for v and w with dx replaced by dy and dz respectively , how would i integrate to obtain the trigonometric solutions here mathbin.net/37252