(y^2)'' + (y^2)' + y^2 = 0(adsbygoogle = window.adsbygoogle || []).push({});

1) Is this DE linear?

What if we substitute y^2 = h

and solve for h

y = sqrt(h)

2) Would that be valid?

3) Would that be considered a somewhat trivial type of linearization?

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# Is this DE linear?

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