00:01
Hello students, here dg is equal to minus s d t plus v into d p.
00:11
Let this be equation number one.
00:13
So if we assume that f is a function of x and y, then d f is equal to do f by do x, that is a partial derivative of f with respect to x, y, d x plus though f do y x d y which is equal to m d x plus n d y so here m is equal to d x plus n d y so here m is equal to do f do x y and n is equal to do f do y so do m by though y with respect to is will be equal to though square f by dough x, do y.
01:13
Let this be equation number 2.
01:16
And similarly we will be having do n by do x to y will be equal to though square f by do y, do x, and let this be equation number 3.
01:30
We already know that do square f by do x, though x, though y, is equal to do square f by do y, dough y, do x...