જો $y \sec x + \tan x + x^2 y = 0$ હોય,તો $\frac{dy}{dx} =$ શું થાય?

  • A
    $\frac{2xy + \sec^2 x + y \sec x \tan x}{x^2 + \sec x}$
  • B
    $-\frac{2xy + \sec^2 x + \sec x \tan x}{x^2 + \sec x}$
  • C
    $-\frac{2xy + \sec^2 x + y \sec x \tan x}{x^2 + \sec x}$
  • D
    આમાંથી કોઈ નહીં

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