i need help with Analysis please!
how do you prove that a sequence (x_{n}) diverges to infinity if and only if (-x_{n}) diverges to -infinity??
it seems like quite a simple question but i cant think of a rigorous enough proof. THANKS!
i need help with Analysis please!
how do you prove that a sequence (x_{n}) diverges to infinity if and only if (-x_{n}) diverges to -infinity??
it seems like quite a simple question but i cant think of a rigorous enough proof. THANKS!