Photos 2 DX DY

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2 dx dy. Dy^2/DX. D^2t/DX^2. D 2 Y/DX 2-2 dy/DX +5y=0. DX/dy=dy/DX.
Dy^2/DX. D^2t/DX^2. D 2 Y/DX 2-2 dy/DX +5y=0. DX/dy=dy/DX.

See also