Recent content by mansfin

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    General solution of differential equation system

    Homework Statement Find the general solution of the system of differential equations x'=10x - 12y y'=25x - 30y (where primes indicate derivatives with respect to t) by using the initial conditions x(0)=A y(0)=B Homework Equations The Attempt at a Solution x''=10x' - 12y'...
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    Solving a Differential Equation: Finding the Particular Solution

    Wow. Implied multiplication on my calculator. Next time I will just work that out by hand. Thanks for your help!
  3. M

    Solving a Differential Equation: Finding the Particular Solution

    I have to find the particular solution to the differential equation: (-21/4)y''+2y'+y=4xe^(3x) First, I chose my trial function to be yp=(Ax+B)*e^(3x). Is this correct? so yp'=3(Ax+B)*e^(3x) yp''=9(Ax+B)*e^(3x) So I plug these into the differential equation and I get...