IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => University => Topic started by: Syeda Zuriat Zahra on January 10, 2010, 06:02:30 am

Title: differential equation
Post by: Syeda Zuriat Zahra on January 10, 2010, 06:02:30 am

can any one solve these equations by method of variation of parameters
y"+y=cosx
y"+y=cos²x
y"+y=coshx

Title: Re: differential equation
Post by: astarmathsandphysics on January 10, 2010, 08:16:33 am

Does it have to be by variation of parameters

Title: Re: differential equation
Post by: Syeda Zuriat Zahra on January 28, 2010, 05:01:05 pm

yes

Title: Re: differential equation
Post by: astarmathsandphysics on January 29, 2010, 02:54:54 pm

I will do it tonighton paper. These questions can be long and complicated with lots of stupid errors.

Title: Re: differential equation
Post by: astarmathsandphysics on January 30, 2010, 01:28:11 pm

Sorry about the delay. Lot going on but I am doing a couple of pages as I write for my website

Title: Re: differential equation
Post by: astarmathsandphysics on January 30, 2010, 03:48:29 pm

http://www.astarmathsandphysics.com/university_maths_notes/calculus/university_maths_notes_calculus_variation_of_parameters_method_solving_nonhomogeneous_differential_equations.html

http://www.astarmathsandphysics.com/university_maths_notes/calculus/university_maths_notes_calculus_variation_of_parameters_method_solving_nonhomogeneous_differential_equations_examples.html