Answer:
The answer matches with option A.
Step-by-step explanation:
We have to find the product of 100,000 and 1,000,000 using scientific notations.
Now, 100,000 can be written as and
1,000,000 can also be written as .
So, the product will give
100,000 × 1,000,000
=
=
=
So, the answer matches with option A. (Answer)
Answer: a) AB = ; b)
; c) No, they are different; d) No, they are never the same;
Step-by-step explanation:
a) A = , B =
. This multiplication is possible, because matrix A has 2 columns and matrix B has 2 rows. When those value are equal, the multiplication is possible.
AB = .
=
b) BA = .
=
c) As, we can see, parts a and b are differents.
d) With matrices, multiplication is not commutative, which means AB≠BA