题目
称次品时:2-3个要1次,4-9个要2次,10-27个要3次,28-81要4次,82-243个要5次,问6-10个各要几次?
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提问时间:2020-07-18
答案
10个要2~3次
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
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