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  • y' y''-x^2-1=0

    From drhuang57@gmail.com@21:1/5 to All on Mon May 31 21:17:53 2021
    y' y''-x^2-1=0
    wolfram alpha gives very long result, how to check solution online? mathHand.com gives a simple solution, and test it by a clicking the "test" button.

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