Math Is Fun Forum

Janiffer

Member

Registered: 2008-04-26

Posts: 12

Limits of functions of two variables

lim (x,y) approaches (0,0): sinh ((x^2) +(y^2)) /((x^2) +y^2))

How do u show the workings??

b) lim (x,y) approaches (0,0) : ((x^3) -(y^3))/((x^2) +(y^2)))

Plese show me how to write it out as I don't know how to explain it... Sorry for the trouble...