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Question

If 2x2−3xy+y2+x+2y−8=0 then dydx=

A
3y4x12y3x+2
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B
3y+4x+12y+3x+2
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C
3y4x+12y3x2
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D
3y4x+12y+3x+2
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Solution

The correct option is A 3y4x12y3x+2
2x23xy+y2+x+2y8=0
So dydx
4x3xy3y+2y.y+1+2y=0
y(3x+2y+2)+(4x3y+1)=0
y=(4x3y+1)3x+2y+2
y=4x+3y12y3x+2
y=3y4x12y3x+2

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