evaluate: (2/5)^-2
***plzz slove this sum fast plzzz***
Answers
Answered by
1
Use the power rule
(
a
b
)
n
=
a
n
b
n
to distribute the exponent.
Tap for more steps...
(
−
1
)
2
2
2
5
2
Raise
−
1
to the power of
2
.
1
2
2
5
2
Multiply
2
2
5
2
by
1
.
2
2
5
2
Raise
2
to the power of
2
.
4
5
2
Raise
5
to the power of
2
.
4
25
The result can be shown in multiple forms.
Exact Form:
4
25
Decimal Form:
0.16
Answered by
1
Answer:
25/4
Step-by-step explanation:
(2/5)^-2
1/(2/5)^2
(5/2)^2
=25/4
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