题目内容

(1)
323
=______,
3(-2)3
=______,
3(-3)3
=______,
343
=______,
303
=______,对于任意实数a,猜想
3a3
=______.
(2)(
38
)3
=______,(
3-8
)3
=______,(
327
)3
=______,(
3-27
)3
=______,(
30
)3
=______,对于任意数a,猜想(
3a
)3
=______.
(1)
323
=2,
3(-2)3
=-2,
3(-3)3
=-3,
343
=4,
303
=0,对于任意实数a,猜想
3a3
=a.

(2)(
38
)3
=8,(
3-8
)3
=-8,(
327
)3
=27,(
3-27
)3
=-27,(
30
)3
=0,对于任意数a,猜想(
3a
)3
=a.
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