计算(√2)²-√(-4)² +4立方根1/8
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计算(√2)²-√(-4)² +4立方根1/8
计算(√2)²-√(-4)² +4立方根1/8
计算(√2)²-√(-4)² +4立方根1/8
(√2)²-√(-4)² +4立方根1/8
=2-4+4×½
=4-4
=0
(√2)²-√(-4)² +4立方根1/8
=2-4+4x1/2
=2-4+2
=0
(√2)²-√(-4)² +4立方根1/8
=2-2+4×1/2
=2