limits problem

[harsh jay]

why are the images marked as wrong? I believe the limits are the equal in both cases

[gritty flower]

Zero

Use LHoPital rule

If you don't know what that is look it up on you tube 🙂

[earnest panther]

These should be correct

[earnest panther]

!xy

[sharp surge]

Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.

[gritty flower]

yea what thius guy said

[little marsh]

The first one should be x/1 and the other one 6/(3x)

For the first one, since x is big, x³-4 is roughly x³ and x²-1 roughly x². So you get x³/x³=x/1

Likewise for the second, x is big so the numerator is roughly 6x² and the denominator 3x³

The idea is that, since you're taking x -> ∞, you can just consider the higher order term (order refers to the power of x)