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Find dy/dx, x=at^2,y=2at and find the value at=1/2

Answer»

SOLUTION :`x=at^2,y=2AT`
Then dx/dt=2at,dy/dt=2A`
`RARR `dy/dx=(2a)/(2at)=1/t`
`therefore dy/dx]_(r=1/2)=1/(1/2)=2`


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