Question

Please, can anyone tell me where and how to find the answer regarding my today's question?

Answer 1

What is today's question?

Answer 2

2 questions
1) solve the system of equations dx/dt=4x+3y and dy/dt=-x+t with x(0)=2, y(0)=-1
2) Find the surface area of that portion of the surface z=1- square-root of x^2+y^2 that lies in the first octant.
thanks

Answer 3

is it differential equation? @primeralph what do you think?

Answer 4

@Loser66 Yeah.