Respuesta :
Answer:
x1-2x2-x3= -2
Step-by-step explanation:
Substitute the three points to get three equations:
a1+0a2+ 3a3=d --------------eq i
a1+a2+a3=d----------------eq ii
-2a1-a2+2a3=d---------------eq iii
subtract eq i from eq ii
a2-2a3=0 ----------- eq iv
now add eq iv to eq iii
-2a1=d ------- eq v
put eq v in eq i
a1 + 3a3=-2a1
a3= -a1 ----------- eq vi
put eq vi in eq iv
a2-2(-a1)=0
a2= -2a1 ------ eq vii
put eq v, eq vi and eq vii in the equation of plane
a1x1+ a2x2+a3x3=d
a1x1 -2a1x2-a1x3=-2a1
x1-2x2-x3= -2
Answer:
2x₁ - x₂ + x₃ = 2
Question in full
(a) Find the general solution for the following system of linear equations:
z2 + 3z3 − z4 = 0
−z1 − z2 − z3 + z4 = 0
−2z1 − 4z2 + 4z3 − 2z4 = 0
(b) Give an example of a solution to the previous system of linear equations.
(c) The points (0, 1, 3), (1, 1, 1), and (−1, −2, 2) lie on a unique plane in R 3 , defined by an equation of the form a1x1 + a2x2 + a3x3 = b. Using your previous answers, find an equation for this plane. (Hint: think about the relationship between the previous system and the one you would need to solve in this question.)
Step-by-step explanation:
The augmented matrix is [tex]\left[\begin{array}{ccc}1&2&3&0\\4&5&6&0\\7&8&9&0\end{array}\right][/tex]
The echelon form
The general solution and the sample solution
as well as the equation of the plane
are given in the attached solution below
