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Mathematics 7 Online
OpenStudy (anonymous):

suppose 4x^2 + 9y^2 = 36 where x and y are functions of t. a) if dy/dt= 1/3, find dx/dt when x=2 and y= (2/3)*(square root of 5) b) if dx/dt= 3 find dy/dt when x= -2 and y= (2/3)*(square root of 5)

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