
帮忙解一下这道题 悬赏10财富
2个回答
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(15)
2^(1004)×(-0.5)^(1005)×4
=2^(1004)×(-0.5)^(1005)×2×2
=2^(1004)×2×(-0.5)^(1005)×2
=2^(1005)×(-0.5)^(1005)×2
=[2×(-0.5)]^(1005)×2
=(-1)^1005×2
=-1×2
=-2
(16)
(-8)^(2011)×(1/8)^(2012)
=(-8)^(2011)×(1/8)^(2011)×(1/8)
=(-8×1/8)^(2011)×(1/8)
=(-1)^(2011)×(1/8)
=-1×(1/8)
=-1/8
2^(1004)×(-0.5)^(1005)×4
=2^(1004)×(-0.5)^(1005)×2×2
=2^(1004)×2×(-0.5)^(1005)×2
=2^(1005)×(-0.5)^(1005)×2
=[2×(-0.5)]^(1005)×2
=(-1)^1005×2
=-1×2
=-2
(16)
(-8)^(2011)×(1/8)^(2012)
=(-8)^(2011)×(1/8)^(2011)×(1/8)
=(-8×1/8)^(2011)×(1/8)
=(-1)^(2011)×(1/8)
=-1×(1/8)
=-1/8
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