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Thread: Substitution to solve fourth order diff equation

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May 23rd 2012, 01:29 PM #1

pete078421

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May 2012

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Substitution to solve fourth order diff equation

Any help would wonderfully appreciated!

Find the General Solution of:

d⁴y/dt⁴ + 2(d²y/dt²) = 4t²
by using the substitution z(t)=(d²y/dt²)

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