Answer:
Postage(weight) or p(w)
Step-by-step explanation:
Answer:
The equation is exact
F(x,y) = 3x4/4 - 3xy -y2
Step-by-step explanation:
The step by step explanation and to ascertain the exactness of the differential equation is as shown in the attached file.
F(4-x)=12
Domain:(-oo,oo) these are infinity symbols by the way.