Show that the system of equations has infinitely many soluti
Show that the system of equations has infinitely many solutions. Specify exactly the solutions and the limitations (Bonus: Graph the solutions) x^2 + y^2 = 3 2x^2 - y^2 + z^2 = 4 4x^2 + y^2 + z^2 = 10
Solution
Let x2 = a , y2 = b and z2 = c
The matrix can be solved as below :
Find the pivot in the 1st column in the 1st row
Eliminate the 1st column
Make the pivot in the 2nd column by dividing the 2nd row by -3
Eliminate the 2nd column
Let z2 be any real number , y2 = (2/3) + (1/3)z2 and x2 = (7/3) - (1/3)z2
| X1 | X2 | X3 | b | |
|---|---|---|---|---|
| 1 | 1 | 1 | 0 | 3 |
| 2 | 2 | -1 | 1 | 4 |
| 3 | 4 | 1 | 1 | 10 |
