In Exercises 1–4, make the given changes in the indicated examples of this section, and then answer the given questions. In Example 6, change the 2 3 to 3 2 . What other changes must then be made? EXAMPLE 6 Reciprocal The reciprocal of 7 is 1 7 . The reciprocal of 2 3 is The reciprocal of 0.5 is 1 0.5 = 2 . The reciprocal of ‒π is – 1 π . Note that the negative sign is retained in the reciprocal of a negative number. We showed the multiplication of 1 and 3 2 as 1 × 3 2 . We could also show it as 1 · 3 2 or 1 ( 3 2 ) . We will often find the form with parentheses is preferable.
In Exercises 1–4, make the given changes in the indicated examples of this section, and then answer the given questions. In Example 6, change the 2 3 to 3 2 . What other changes must then be made? EXAMPLE 6 Reciprocal The reciprocal of 7 is 1 7 . The reciprocal of 2 3 is The reciprocal of 0.5 is 1 0.5 = 2 . The reciprocal of ‒π is – 1 π . Note that the negative sign is retained in the reciprocal of a negative number. We showed the multiplication of 1 and 3 2 as 1 × 3 2 . We could also show it as 1 · 3 2 or 1 ( 3 2 ) . We will often find the form with parentheses is preferable.
In Exercises 1–4, make the given changes in the indicated examples of this section, and then answer the given questions.
In Example 6, change the
2
3
to
3
2
. What other changes must then be made?
EXAMPLE 6 Reciprocal
The reciprocal of 7 is
1
7
. The reciprocal of
2
3
is
The reciprocal of 0.5 is
1
0.5
=
2
. The reciprocal of ‒π is –
1
π
. Note that the negative sign is retained in the reciprocal of a negative number.
We showed the multiplication of 1 and
3
2
as 1 ×
3
2
. We could also show it as
1
·
3
2
or
1
(
3
2
)
. We will often find the form with parentheses is preferable.
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