Please send the solution to the problem given in the attachment.

A level set of a function of two variables f(x,y) is a curve in the two-dimensional xy-plane, called a level curve. E.g- x^2+y^=c A level set of a function of three variables f...

Thank you!

in 2D we say level curve....in 3D we say level surface

yes it is right . it will represent a surface.