作者victor7935 (victor)
看板trans_math
标题[微分] 习题1题
时间Sun Oct 19 21:44:06 2008
Let f(x)=1/x,x>0. Show that the triangle that is formed by
each line tangent to the graph of f and the coordinate axes
has an area of 2 square units.
谢谢....
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