The expansion $\log_e(1 + x) = \sum\limits_{i = 1}^\infty \left[ \frac{(-1)^{i + 1}x^i}{i} \right]$ is defined for:

  • A
    $x \in (-1, 1)$
  • B
    Any positive real $x$
  • C
    $x \in (-1, 1]$
  • D
    Any positive real $x$ where $x \neq 1$

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