simplify [{(-2/5)^-7×(-2/5)^9}÷(-2/5)^2] and Express the result as a power of 5.
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0
[{(
5
−2
)
−7
×(
5
−2
)
9
}÷(
5
−2
)
2
]
⇒ (
5
−2
)
−7+9
÷(
5
−2
)
2
[ a
m
×a
n
=a
m+n
]
⇒ (
5
−2
)
2
÷(
5
−2
)
2
⇒ (
5
−2
)
2−2
[ a
m
÷a
n
=a
m−n
]
⇒ (
5
−2
)
0
⇒ 1
⇒ 1
5
Answered by
0
Answer:
your answer is
2/5)^-7×(-2/5)^9}÷(-2/5)^2
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