Game Development Reference
In-Depth Information
than the first three. Consider that you can rewrite the equation as
1
1
4
1
4
1
3
¼
1.
Inverses prove useful as ways to reduce the complexity of problems.
Multiplicative Property of Zero
When you multiply a number by zero, the result is zero.
a
0
¼
0
a ¼
0
Division Involving Zero
While division by zero is undefined, if you divide zero by any number, the result
is zero. The rules for division involving zero are
a
0
¼ undefined
0
a
¼
0
Exercise Set 2.3
Here are a few problems that involve working with additive and multiplicative identities, inverses,
and the zero properties. Solve each problem.
a.
1
5
5
b.
2
3
2
c. 10 þ 10
d.
0
9
Change the sign (find the opposite or additive inverse) of each number:
3
e. 2
f. 45
g. 7.14
h.
9
5
Find (-x) when x is each of the following:
3
4
j. 0.12
i.
