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Hi, How do substitutions in inequalities work. What's stopping me from making the sub of p=p/1+p, q=q/1+q etc into this http://snag.gy/b2B8i.jpg

Then if a limit actually approaches 0 or infinity how would you know when to stop manipulating?

http://tutorial.math.lamar.edu/Classes/CalcI/LimitsAtInfinityI_files/eq0034M.gif http://tutorial.math.lamar.edu/Classes/CalcI/LimitsAtInfinityI_files/eq0020M.gif How do we know for the second one that we can plug in the limit without any manipulation Is there some rule saying when you can and...

As in when can you "sub" in the limit For example what's stopping you from subbing in to get 0

Hi When doing limits when are you allowed to apply the condition? Also why is a cusp discontinuous Thanks

How do we explain why an object in orbit will move further out when the velocity increases?

How is orbital velocity related to radius Do v=2πr/t. And v=√Gm/r. Contradict?

Hi Is escape velocity defined as vertically upwards? If so how does it fit in with newtons cannon thought experiment? Thanks

4U please :D

Hi, When doing a mechanics question e.g. where a particle is falling, Would taking either up as positive or down as positive change the answer because you will be using different limits? I know the equation you get for acceleration would be the same but would the equation for velocity or...

Not in Uni yet but looking to do actuarial studies

Yes please :D, Can i PM you some questions about co-op?

Do you guys know where i can have a look what you learn in first year so i can get a better feel for the course? online textbooks etc. ? Also, is it very different to extension 2 maths?

I think staying up till one during year 12 is more because you left your work really late as opposed to the large workload you get as a cadet?

ohhh thanks so much :D

then what about something like differentiating y=sin(x^2) is that still chain rule? Btw the question didn't say to use chain rule, i was just wondering why you couldn't use it.

Hi, Why can't you use the chain rule for differentiating y=(x+1)^x to find dy/dx? Thanks

What Are some of these other jobs ? Thanks

interested in this too

What fields or jobs do com/law or Eco/law students generally go into after graduation? Thanks