Question

solve (2xy-y²-y)dx+(2xy-x²-x)dy=0​

Answer 1

Answer:

answer is 12

Step-by-step explanation:

becauseGiven, d(x

2

y)=d(xy)+d(xy

2

)

⇒x

2

y=xy+xy

2

+c

At x=1,y=1 ⇒ c = -1

⇒x

2

y=xy+xy

2

−1⇒y=−y+y

2

−1

∴y

2

+2y+1=0⇒y=−1

∴12y∣y(−1)∣=12