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प्रश्न
If x=at2, y= 2at , then find dy/dx.
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उत्तर
We have, `y = 2at `
`dy/dt=2ad/dt(t)=2a(1)=2a`
also `x=at^2`
`dx/dx=a d/dt(t^2)=a(2t)=2at`
now `dy/dx= (dy/dt)/(dx/dt)=(2a)/(2at)=1/t`
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