| In
arithmetic, the multiplicative identity is |
 |
. |
This means that you
can multiply
1
to any number... and it keeps its identity!
The number stays the same!
Let's look at the
number
8.
Anyway we try to multiply
1
to it, the
8
just keeps coming back as the answer.
Go ahead and try it
with any number you can thing of... It always
works!
And, when something
always works in math, we make it a property:
|
The
Multiplicative
Identity
Property:
|
The
multiplicative identity is |
|
because |
 |
and |
 |
This is often
written in one line...
Where
a
is any real number. |
|
