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Mathematics for IGCSE & O level - Indices 2 (Section 1 - No. 8)
If a
x
= b and b
y
= c, which expression equals a
xy
?
c
b
a
a
x
解释
Since b
y
= c and b = a
x
then (a
x
)
y
= c, so a
xy
= c.
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