MATH1131/1141 Limits question - pinching theorem (1 Viewer)

[IAU001]

this could potentially be a stupid question but how do i prove ththe following using the pinching theorem? this question is from the Limits chapter in the course notes for MATH1131 & 1141:




there was only one example in the course notes, and using the same method I did this:






but i can't use the pinching theorem because the limits limits of -1/theta and 1/theta is minus infinity and infinity respectively.

any help appreciated!

 

[shady145]

i just did that question ><

before that part of the question it says show that cos@sin@<=@<=tan@
try using that... parhaps divide thtough by sin@???

 

[untouchablecuz]

 

[tommykins]

Probably better to ask your tutor or lecturer next time.

 

[IAU001]

Probably better to ask your tutor or lecturer next time.

yeah i think ill probably do that. would you know the story with consultation times for maths? because i was browsing blackboard, and i found them for physics but i couldn't find the consultation times for my maths lecturer/tutor. i might have to run down and stop him before he leaves.

thanks anyway!

 

[tommykins]

yeah i think ill probably do that. would you know the story with consultation times for maths? because i was browsing blackboard, and i found them for physics but i couldn't find the consultation times for my maths lecturer/tutor. i might have to run down and stop him before he leaves.

thanks anyway!

you should have it in your course outline or ask the tutor.

 

[LordPc]

isnt there like this whole tutoring program the school of maths runs where you go and a tutor/lecturer helps you out?

im sure they have posters for it all over the red centre

 

[tommykins]

isnt there like this whole tutoring program the school of maths runs where you go and a tutor/lecturer helps you out?

im sure they have posters for it all over the red centre

yah they do

 

[Rage01]

Is there anywhere we can find Calculus past papers / practice questions?

The ones that came with the course pack are for the semester 1 final exams i think, but are there any smaller ones to practice on for our first ever calculus test (week5)?

 

[tommykins]

back of your book.

 

[xFusion]

are there any answers given for the tests at the back of the calculus notes book?

 

[jb_nc]

wolfram alpha does limit calculations

granted, for sin x/x it uses L'opitals to work it out, it can be quite helpful

 

[Rage01]

are there any answers given for the tests at the back of the calculus notes book?

yes I'd like to know this as well.

I can only use Maple for the limit questions

 

[LordPc]

yes I'd like to know this as well.

I can only use Maple for the limit questions

why dont you post your question here on the forums?

that way other people can help you check that your answer is correct and you and other people will also have access to the answer?