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dy/dx= (dy/dt)/(dx/dt),  dx/dt not equal to 0
hence if x= at^2, y= 2at then find dy/dx

Asked by pdcavita 31st October 2017, 3:46 PM
Answered by Expert
begin mathsize 16px style straight x equals at squared comma space straight y equals 2 at
dx over dt equals 2 at space and space dy over dt equals 2 straight a
rightwards double arrow dy over dx equals fraction numerator dy over dt over denominator dx over dt end fraction
dy over dx equals fraction numerator 2 straight a over denominator 2 at end fraction
dy over dx equals 1 over straight t end style
Answered by Expert 13th December 2017, 4:51 PM
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