1. Solving a formula for one of its variables mean there are more than oone variable.
We cannot solve a variable from a single multivariable equation
if we solve eqither or we wolud not get a numerical value.
2. Statement makes sense.
Let us take
Solving for and gives
3. Statement makes sense.
By solving for a variable, we can use that value of variable (substitute) in later steps of a problem.
4. Makes sense.
Let us take an example
find a point on the plane x+y+z=1 that is closest to the point (2,0,-3)
Can this ODE system be solved?
Is there a method to solve the following ODE system?
with initial conditions .
Evaluate the composite function
Solve the system of equations by hand.