Which of the following represents "Subtract a from b,then multiply the result by 4"?
题目
Which of the following represents "Subtract a from b,then multiply the result by 4"?
A.b-4a
B.a-4b
C.4(a-b)
D.4(b-a)
答案
D
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
最新试题
热门考点