SOLUTION: Are these matrices inverses of each other? Show why or why not.
[2 -1]
[-3 1]
[-1 -1]
[-3 -2]
Algebra.Com
Question 176155: Are these matrices inverses of each other? Show why or why not.
[2 -1]
[-3 1]
[-1 -1]
[-3 -2]
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The inverse of a 2x2 matrix [A], where
[A]=
is given by
[A]inv=
where
In your case,
[A]inv=
[A]inv=
This matrix matches the inverse given.
Yes, they are inverses.
RELATED QUESTIONS
g(x)= (4/x-1)+1
f(x)=(3/x+2)-1
Are these functions inverses of each... (answered by josgarithmetic)
1.(a)given the matrix=A
{2 3},what ar its dimension
{0-1}
{1 4}
b)can these... (answered by Edwin McCravy,Fombitz)
can someone please help:
Determine whether the two matrices are inverses of each other (answered by Fombitz,jim_thompson5910)
are any of these liner or not and why?
2x+3=1
2x=5
6x^2-3=4 (answered by KMST)
Is 2 x 1/3 equal to 2 1/3 why or why... (answered by stanbon)
Is the relation {(1,-1),(2,-2),(3,-3)} a function? Explain why or why not. (answered by jim_thompson5910)
Matrices A and B are multiplicative inverses. Find X
> 2 , x <
> 1 , 2 <
> 2... (answered by Fombitz)
Are f and g inverses of each other ?
g(x) = 1/2x - 1/3
f(x) =... (answered by CubeyThePenguin)
How to solve whether or not the functions are inverses of each other?
1)F(x)=6x-7,... (answered by funmath)