81
+
Express
as a rational number.
16
Answers
Answered by
0
Answer:
Answer
As 16=4×4
And 81=9×9
Now use, (
b
a
)
m
=
b
m
a
m
∴
81
16
=
9
2
4
2
=(
9
4
)
2
∴
81
−16
=
9
2
−(4
2
)
=−(
9
4
)
Step-by-step explanation:
ok
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