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Mathematics 9 Online
OpenStudy (anonymous):

Applications of derivative/ Find two numbers whose product is -12 and the sum of whose squares is a minimum.

OpenStudy (anonymous):

限制

OpenStudy (anonymous):

xy=-12 ==> y=-12/x ===> g(x) =x^2+(144/x^2) ==> g'(x) =2x-288/x^3 ===> g'(x) =0

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