Question

lim x-> infinity of ...

Answer 1

\[\lim_{x \rightarrow \infty} \frac{ \sqrt{4x ^{6}-x} }{ x^3 + 7} \]

Answer 2

i just need to know how to deal with radical

Answer 3

sqrt(4x^6 - x) = (x^3)sqrt(4 - x^(-5)). Do similar for the denominator and cancel out x^3 from top and bottom.

Answer 4

ahh i see what you did, great! thank you