solve x''+9x=cos3t where x(0)=1 and x(pi/2)=-1

here x'(0) is not given and i am unable to use x(pi/2)=-1

please help!!

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- Feb 24th 2013, 01:34 AMprasumlaplace sum
solve x''+9x=cos3t where x(0)=1 and x(pi/2)=-1

here x'(0) is not given and i am unable to use x(pi/2)=-1

please help!! - Feb 24th 2013, 02:55 AMProve ItRe: laplace sum
You don't need to use Laplace Transforms at all, simply solve the homogeneous equation and then apply the method of undetermined coefficients...

- Feb 24th 2013, 03:18 AMILikeSerenaRe: laplace sum
- Feb 24th 2013, 03:20 AMprasumRe: laplace sum
thanks