Multiple choice

The recursion relative to solve x = e-x using Newton-Raphson method is

  1. xn+1 = $e^{-X_n}$
  2. xn+1 = xn -$e^{-X_n}$
  3. xn+1 = (1 + xn) $\frac{e^{-X_n}}{1 + e^{-X_n}}$
  4. xn+1 = $\frac{x_n^2 - e^{-X_n} (1 - X_n) - 1}{X_n - e ^{-X_n}}$
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C Correct answer
Explanation

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