MCQ
A differential equation of first order and first degree is
  • A
    $x{\left( {\frac{{dy}}{{dx}}} \right)^2} - x + a = 0$
  • B
    $\frac{{{d^2}y}}{{d{x^2}}} + xy = 0$
  • $dy + dx = 0$
  • D
    None of these

Answer

Correct option: C.
$dy + dx = 0$
c
(c) Option $(a)$ First order and second degree.

Option $(b)$ Second order and first degree.

Option $(c)$ First order and first degree.

$i.e.$, $dy + dx = 0$or $\frac{{dy}}{{dx}} + 1 = 0$.

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