Answer with Step-by-step explanation:
Let A is non-singular
We have to prove that 
is unique.
Suppose B and C are inverse of A such that
and AC=I
By using property 
Hence, the inverse of A is unique.
Answer:
D. (3, -4)
Step-by-step explanation:
Imagine you are going 4 right and 3 up.
Now if you turn this 90o clockwise, you are going 4 down and 3 right.
that is (3, -4)
Answer:
{x,y} = {1/3,1/9}
Step-by-step explanation:
Solution :
{x,y} = {1/3,1/9}
System of Linear Equations entered :
[1] 4x + 6y = 2
[2] -4x + 3y = -1
Graphic Representation of the Equations :
6y + 4x = 2 3y - 4x = -1
Solve by Substitution :
// Solve equation [2] for the variable y
[2] 3y = 4x - 1
[2] y = 4x/3 - 1/3
// Plug this in for variable y in equation [1]
[1] 4x + 6•(4x/3-1/3) = 2
[1] 12x = 4
// Solve equation [1] for the variable x
[1] 12x = 4
[1] x = 1/3
// By now we know this much :
x = 1/3
y = 4x/3-1/3
// Use the x value to solve for y
y = (4/3)(1/3)-1/3 = 1/9
Solution :
{x,y} = {1/3,1/9}
Answer:
Step-by-step explanation:
