C and D are inverses of one another. Find the elements of the product. e1 = e2 = e3 = e4 = What value of x makes the two matrices inverses of one another?

e1 = e2 = e3 = e4 =
1
⇒ 0
0
a11 = a12 = a21 = a22 =
-1
a11 = a12 = a21 = a22 =
-1.5
a11 = a12 = a21 = a22 =
2
a= b= c= d= e= f= g= h= i=
-2.5
a= b= c= d= e= f= g= h= i=
3.5
e1 = e2 = e3 = e4 =
1
Which of the following matrices do not have an inverse?




a= b= c= d= e= f= g= h= i=
6.5
a= b= c= d= e= f= g= h= i=
3.5
⇒ 9
I
d = e = f =
24
x =
-3
Step 2: Swap elements and change signs:
a= b= c= d= e= f= g= h= i=
1.5
⇒ 1
A
e11 = e12 = e13 =
5
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