lim-x-3-1-x-3-x-

Question Number 26293 by d.monhbayr@gmail.com last updated on 23/Dec/17

\lim_{x \to \infty} (3 \sqrt{1 - x^{3} + x)}

Answered by Joel578 last updated on 24/Dec/17

L = 3 . \lim_{x \to \infty} \sqrt{1 + x - x^{3}}

= 3 . \lim_{x \to \infty} \sqrt{x^{3} (\frac{1}{x^{3}} + \frac{1}{x^{2}} - 1)}

= 3 . \lim_{x \to \infty} \sqrt{\infty^{3} (- 1)}

= i \infty (I didnt sure the answer is i \infty or just \infty)

Facebook Tweet Pin