若根號(hào)1-3a+l8b-3l=0,則ab的立方根=多少
若根號(hào)1-3a+l8b-3l=0,則ab的立方根=多少
l l是絕對(duì)值
l l是絕對(duì)值
數(shù)學(xué)人氣:947 ℃時(shí)間:2020-05-19 19:00:26
優(yōu)質(zhì)解答
由題意:a=1/3,b=3/8,所以ab=1/8,ab的立方根=1/2..
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