已知：立方根0.756=0.9110,立方根7.56=1.963,立方根75.6=4.228,则立方根756=几,负立方根0.00756等于几
问题描述：
已知：立方根0.756=0.9110,立方根7.56=1.963,立方根75.6=4.228,则立方根756=几,负立方根0.00756等于几
答
立方根0.756=0.9110 756=0.756×1000 立方根1000=10 所以 立方根756= 0.9110×10=9.110
立方根7.56=1.963 0.00756=7.56÷1000 所以负立方根0.00756=-1.963÷10=-0.1963
答
立方根756=立方根（0.756*10³）=立方根0.756*10=0.9110*10=9.110
立方根0.00756=立方根（7.56*10^-3）=立方根7.56*0.1=1.963*0.1=0.1963
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答
³√10=立方根75.6/立方根7.56=4.228/1.963
立方根756=立方根75.6x³√10=4.228x4.228/1.963=9.106
负立方根0.00756=-立方根7.56/10=-1.963/10=-0.1963