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The Constant Solution Of dxdt=2x2+y21,dydt=x2y\frac { d x } { d t } = 2 x ^ { 2 } + y ^ { 2 } - 1 , \frac { d y } { d t } = x - 2 y

Question 24

Multiple Choice

The constant solution of dxdt=2x2+y21,dydt=x2y\frac { d x } { d t } = 2 x ^ { 2 } + y ^ { 2 } - 1 , \frac { d y } { d t } = x - 2 y are


A) x=2/3,y=1/3x = 2 / 3 , y = 1 / 3
B) x=2/3,y=1/3x = 2 / 3 , y = 1 / 3 and x=2/3,y=1/3x = - 2 / 3 , y = - 1 / 3
C) x=2/3,y=1/3x = - 2 / 3 , y = - 1 / 3
D) x=2/7,y=1/7x = 2 / \sqrt { 7 } , y = 1 / \sqrt { 7 }
E) x=2/7,y=1/7x = 2 / \sqrt { 7 } , y = 1 / \sqrt { 7 } and x=2/7,y=1/7x = - 2 / \sqrt { 7 } , y = - 1 / \sqrt { 7 }

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