You are Here: Home

# Maths C2 help

Maths and statistics discussion, revision, exam and homework help.

Announcements Posted on
Find out how cards are replacing warnings on TSR...read more 03-12-2013
1. Maths C2 help
Could someone please explain how to do question 10 and 11i?

http://www.mei.org.uk/files/papers/2011_June_c2.pdf
2. Re: Maths C2 help
10: Substitute in t = 1 and t = 2.
For example,
With t = 1 and t = 2 you will get . For this think about the sin graph: if you start 180 degrees or 360 degrees later, what happens?

11: Use the information that A = 200 and re-arrange the equation to get i.e. in terms of r and constants. Then substitute that in to your volume equation.
Last edited by starkrush; 18-04-2012 at 18:51.
3. Re: Maths C2 help
number 10: replaced trheta with a cos i cant type one
t1=sin(a+180)
t2=sin(a+360)
so what are these in terms of sin a?
hint: think of the period and graph.

number 11:
start off by rearranging you A=200 to try and find some stuff about the volume.
Now with the new formula you have differentiate twice, find the turning point at a maximum and theres your maximum voume if you sub this in

## Step 2: Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank

this is what you'll be called on TSR

2. this can't be left blank

never shared and never spammed

3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. By completing the slider below you agree to The Student Room's terms & conditions and site rules

2. Slide the button to the right to create your account

You don't slide that way? No problem.

Last updated: April 18, 2012
Study resources