JEE Main 2023 · 25 Jan · Shift 1

JEE Main 2023 Mathematics question on Differential Equations

Let y=y(x)y = y(x) be the solution curve of the differential equation dydx=yx(1+xy2(1+log⁡ex))\frac{dy}{dx} = \frac{y}{x}\left(1 + xy^2(1 + \log_e x)\right), x>0x > 0, y(1)=3y(1) = 3. Then y2(x)9\frac{y^2(x)}{9} is equal to :
  1. A.
    x27−3x3(2+log⁡ex2)\dfrac{x^2}{7 - 3x^3(2 + \log_e x^2)}
  2. B.
    x25−2x3(2+log⁡ex3)\dfrac{x^2}{5 - 2x^3(2 + \log_e x^3)}
  3. C.
    x23x3(1+log⁡ex2)−2\dfrac{x^2}{3x^3(1 + \log_e x^2) - 2}
  4. D.
    x22x3(2+log⁡ex3)−3\dfrac{x^2}{2x^3(2 + \log_e x^3) - 3}
Show answer

Correct option: B

[JEE Main 2023 · 25 Jan · Shift 1]

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