How do you solve the system #x^2+3y^2=16# and #3x^2+y^2=16# and #y=-x#?
1 Answer
Jul 10, 2016
Explanation:
Three equations and two incognitas. One of them must be redundant, to have a solution. Being a nonlinear system is not trivial to detect redundancy.
First we solve for
giving
testing the solutions
we follow with the solution which is