हल कीजिए-
`{x cos ((y)/(x))+y sin ((y)/(x))}y`
`-{ysin ((y)/(x))-x cos ((y)/(x))}x(dy)/(dx)=0.`
या
`(xdy-ydx)y sin ((y)/(x))=(ydx+xdx)x cos ((y)/(x)).`

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1 Answers

Correct Answer - `sec ((y)/(x))=Cxy.`

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