if I buy apple and an orange ,the cost will be 1.56,if i buy a banana andan apple ,the cost will be
题目
if I buy apple and an orange ,the cost will be 1.56,if i buy a banana andan apple ,the cost will be 1.4,what are the individual price
答案
in my opinion probably the question is not right or not complete.you can't get an answer based on this.
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．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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