need urgent help solving this DE by variation of parameters

y'' + y = sec (theta) * tan (theta)

any help is greatly appreciated

thank you

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- June 30th 2008, 04:02 PMkithysolve by variation of parameters
need urgent help solving this DE by variation of parameters

y'' + y = sec (theta) * tan (theta)

any help is greatly appreciated

thank you - June 30th 2008, 06:07 PMTheEmptySet