Friday, October 11, 2013

Solve the differential equation: y'= sqrtx * y

y' = sqrtx * y


To solve
differential equation, first we will rewrite the
equation:


we know that y' =
dy/dx


==> dy / dx = sqrtx *
y


Now we will group x terms on one side and y terms on the
other side of the equality:


We will multiply by dx/y for
both sides:


==> dy/y = sqrtx
dx


Now let us integrate both
sides:


intg dy/y = intg sqrtx
dx


==> ln y = (x^3/2 )/(3/2) +
C


==> ln y =( 2/3)(x^3/2) +
C


==> y= e^[(2/3)*x^3/2)+
C]


==> y = e^(2/3)x^3/2  + C

No comments:

Post a Comment