Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
 You are Here: Home >< Maths

# Integration watch

1. Hi all, I have started the AS maths early, not doing it all the time, but, when I am free and do it for fun (bet your all thinking "how is that fun?") anyways, Yesterday I was reading up about integration. Now, when finding areas under curves, do you use limits? What are limits? Why are they used on a definite integral? Many thanks

Posted from TSR Mobile
2. The questions you ask reveal you don't have the slightest idea what you are doing.

When finding the area under a graph you find the area bounded by the curve, the x axis and two vertical lines (when integrating with respect to x). The equations of the vertical lines are the limits and they identify a "definite" area.
3. (Original post by mabbotts)
Hi all, I have started the AS maths early, not doing it all the time, but, when I am free and do it for fun (bet your all thinking "how is that fun?") anyways, Yesterday I was reading up about integration. Now, when finding areas under curves, do you use limits? What are limits? Why are they used on a definite integral? Many thanks

Posted from TSR Mobile
suppose you wanted to find the area of a rectangle with a fixed height lying on the x-axis . This area would obviously depend on how wide the rectangle was, and this width would be the difference between the leftmost vertical side (left hand x limit) and the rightmost vertical side (right hand x limit).

It's the same principle with integration - you have a curve, you want to find out how much area is underneath it between 2 particular x values, and those values are your "limits"
4. Ahhh thank you, that makes sense now

Posted from TSR Mobile

Reply
Submit reply
Turn on thread page Beta
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 1, 2013
Today on TSR

### Been caught plagiarising...

...for the 2nd time this year

### Mum says she'll curse me if I don't go to uni

Discussions on TSR

• Latest
Poll
Useful resources

## Make your revision easier

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

Can you help? Study help unanswered threads

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.