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Grade 12th passDifferential Calculus

Please answer the thirdquestion as given in the attached image

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Profile image of Siddhi jha
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
8 Years ago
Dear Siddhi
 
This can be written as
 
x = y + 1/x
 
x² = xy + 1
 
2x = x dy/dx + y 
 
dy/dx = (2x - y) /x = (2x-y) (x-y)
 
dy/dx = 2x² + y² -3xy