Here we have nine numbers:nineteen,six,twenty-four,ten,two,twenty,twenty-eight,fifteen and eleven.
题目
Here we have nine numbers:nineteen,six,twenty-four,ten,two,twenty,twenty-eight,fifteen and eleven.
put them in the blanks and make sure(确保）the numbers on each line are the same(使横纵斜三个数之和都相等）.
答案
19 2 24
20 15 10
6 28 11
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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