Rajat Jain posted an Question
May 21, 2020 • 17:10 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Among the following which are the de of first order and first degree dy = f(x, y) m(x, y)dx+ n(x, y)dy = 0 (b) (a) dx dx (d) xm(x, y)dx + yn(x, y)dy = 0 (c) f(x

Among the following which are the DE of first order and first degree dy = f(x, y) M(x, y)dx+ N(x, y)dy = 0 (B) (A) dx dx (D) xM(x, y)dx + yN(x, y)dy = 0 (C) f(x, y) dy iaa are exact differentials?

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    Dhairya sharma

    according to 1 order and 1 degree option 3 is also correct.

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    no in book first and second are given correct

    eduncle-logo-app

    dear no, 1,2 ,3 all are correct till there's no specification that which is independent variable n all.

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    Dhairya sharma

    ans is b. dear it's a condition of DE to be an exact that Mdx + Ndy =0

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    an other option is also correct

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