The equation of a curve is a^2+4ab+b^2=3. Let (x1,y1) be a point on this curve. Find dy/dx, and hence show that the equation of the normal to the curve at(x1,y1) is a(2x1+y1)-b(x1+2y1)=2(x1^2-y1^2).
Find the coordinates of each point of the curve at which the normal passes through the origin.
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dy/dx
2011-04-03 2:50 pm
回答 (1)
2011-04-05 8:47 pm
收錄日期: 2021-04-23 23:27:37
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https://hk.answers.yahoo.com/question/index?qid=20110403000051KK00218