Question

Checking my answer lim x->inf ((4x-9)^1/2)/(x+3). Is it equal to 0?

Answer 1

yep, its 0 ! :)

Answer 2

cool ^_^ and it's because on the top it's power to 1/2 and bottom power to 1?

Answer 3

thats correct.
a more methodical way to do this is to divide numerator and denominator by 'x'

so that you get terms like 1/x, 1/x^2, ...and so on,
and since x approaches infinity, all those terms will approach 0

Answer 4

ah ok, I'll remember that, thanks!

Answer 5

welcome ^_^

Answer 6

umm

Answer 7

if I divide (4x-9)^1/2 by x, what do I get?