Maths C2 help
Maths and statistics discussion, revision, exam and homework help.
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Maths C2 helpCould someone please explain how to do question 10 and 11i?
http://www.mei.org.uk/files/papers/2011_June_c2.pdf -
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Re: Maths C2 help10: 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 17:51. -
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Re: Maths C2 helpnumber 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
