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 Use u(x,y)=x3y as a integrating factor to find the general solution of the \text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the }

Question 78

Multiple Choice

 Use u(x,y) =x3y as a integrating factor to find the general solution of the \text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the } differential equation (4y3+7x3y) dx+(4xy2+2x4) dy=0\left( 4 y ^ { 3 } + 7 x ^ { 3 } y \right) d x + \left( 4 x y ^ { 2 } + 2 x ^ { 4 } \right) d y = 0


A) x5y3+x8y3=Cx ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 3 } = C
B) x4y4+x7y3=Cx ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 3 } = C
C) x4y4+x7y2=Cx ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 2 } = C
D) x5y3+x8y2=Cx ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 2 } = C
E) x3y6+x9y2=Cx ^ { 3 } y ^ { 6 } + x ^ { 9 } y ^ { 2 } = C

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