观察下列各式的计算结果:
1-=1-
=
=
×
1-
=1-
=
=
×
1-=1-
=
=
×
1-
=1-
=
=
×
……
(1)用你发现的规律填写下列式子的结果:
1-= × ; 1-
= × ;
(2)用你发现的规律计算:
(1-)×(1-
)×(1-
)×…×(1-
)×(1-
).
观察下列各式的计算结果:
1-=1-
=
=
×
1-
=1-
=
=
×
1-=1-
=
=
×
1-
=1-
=
=
×
……
(1)用你发现的规律填写下列式子的结果:
1-= × ; 1-
= × ;
(2)用你发现的规律计算:
(1-)×(1-
)×(1-
)×…×(1-
)×(1-
).
试题篮
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