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The General Solution of the Exact Differential Equation (x+y)dx+(2y+x)dy=0( x + y ) d x + ( 2 y + x ) d y = 0

Question 87

Multiple Choice

The general solution of the exact differential equation (x+y) dx+(2y+x) dy=0( x + y ) d x + ( 2 y + x ) d y = 0 is


A) x22xy+2y2=Cx ^ { 2 } - 2 x y + 2 y ^ { 2 } = C
B) x2+2xy+2y2=Cx ^ { 2 } + 2 x y + 2 y ^ { 2 } = C
C) x2+2xy2y2=Cx ^ { 2 } + 2 x y - 2 y ^ { 2 } = C
D) x22xy2y2=Cx ^ { 2 } - 2 x y - 2 y ^ { 2 } = C
E) 3x2+2xy+2y2=C3 x ^ { 2 } + 2 x y + 2 y ^ { 2 } = C

Correct Answer:

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