Limit of 2 variable function!

Any doubt then you can ask.

Use path y= mx if final answer depends on m then limit doesn't exist. In this case x(mx)^2/(x^2+(mx)^2) which equals to m^2x/(1+m^2) . when x tends to zero it is equal to 0 .As you...

see attached solution answer is 0 if any doubt then reply ..