MCQ
$\left(1+x^2\right) d y=\left(1+y^2\right) d x$ का हल है :
  • A
    $x+y=k(1-x y)$
  • B
    $y-x=k(1-x y)$
  • C
    $x+y=k(1+x y)$
  • $y-x=k(1+x y)$ Ans.

Answer

Correct option: D.
$y-x=k(1+x y)$ Ans.
(D)

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