Saturday, October 8, 2011

`dy/dx = (6-x^2)/ (2y^3)` Find the general solution of the differential equation

`(dy)/dx = (6-x^2)/(2y^3)`


This differential equation is separable since it can be rewritten in the form


`N(y) dy=M(x) dx`


So separating the variables, the equation becomes


`2y^3dy = (6-x^2)dx`


Integrating both sides, it result to


`int 2y^3dy = int (6-x^2)dx`


`2*y^4/4 + C_1 = 6x-x^3/3 + C_2`


`y^4/2 + C_1 = -x^3/3 + 6x + C_2`


Since C1 and C2 represent any number, it can be expressed as a single constant C.


`y^4/2 = -x^3/3 + 6x + C`



Therefore, the general solution of the given differential equation is `y^4/2 = -x^3/3 + 6x+ C` .

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