Solve the initial value dydx 2xy2 0 y1 Solutiony 2xy2 0
Solve the initial value dy/dx + 2xy2 = 0,
y(1) = ½
Solution
y\' +2xy^2 = 0
=>
dy/y^2 = -2xdx
=>
-1/y = -x^2 +c
=>
x^2-1/y = c
y(1) = 1/2
=>
1-2= c
=>
c =-1
=>
x^2 -1/y = -1
=>
y =1/(x^2+1)

Solve the initial value dy/dx + 2xy2 = 0,
y(1) = ½
y\' +2xy^2 = 0
=>
dy/y^2 = -2xdx
=>
-1/y = -x^2 +c
=>
x^2-1/y = c
y(1) = 1/2
=>
1-2= c
=>
c =-1
=>
x^2 -1/y = -1
=>
y =1/(x^2+1)
