Hi can somebody please explain how you get from finding the integral (S) of:
S (cos6x.cos2x) dx >> to 1/2 S (cos8x + cos4x) dx
not sure how to expand the double angle results that leave me with that as an answer??
thanks
I know some people love doing math early in the morning so could some one please answer before I leave at 6.45AM.
A wine glass is shaped so that the depth of the liquid in it is y cm, the volume of the liquid is given by V = 1/5 *y^4 cm^3. At what rate is the level rising when the depth is...
My careers advisor held a yr 12 meeting last week and told us that out of the odd 500 weeks of school that we have gone thorugh so far we have 22 weeks to go!!
cant believe how fast this year has gone, already into week 4 of term 3 and feels like its ending too soon, going too quick!
anyway 22...
Currently with the Business S. marathon this year working as revision for me I wanted to start up the 2010 Economics revision marathon.
You know what to do. Answer the Q. and ask a new one. Remember all who participate will benefit, so contribute!!!
i'll start..
Define Gross World Product.
Hi,
When you are posting a new thread in maths how do you start using Latex??
If you respond to a question you can start the software from near the bottom of the page, but how do you do it when starting a new thread??
thanks!!
10 (c) p30 arnold
1-2i is one root of x^2-(3+i)x+k = 0.
Find k and the other root of the equation.
Why is the other root NOT the conjugate of 1-2i ???
under what conditions is this rule valid??
thanks for any clearing up.
you are given e=2/3 and directrices x=+or-9
how do you find the equation. why isnt the answer x^2/9+y^2/5 = 1
instead it uses the directrices to get x^2/36 + y^2/20 = 1
how do I use laTex when posting a new thread??
thanks!
I've just started conics can someone help out. cant seem to get the right answer??
x^2/16 + y^2/36 = 1
find b. the eccentricity
c. the foci
and e. the equations of directricies
I keep getting my e value as sqroot5/3
how is it the correct answer of sqroot20/6 ??
as most of us are returning to school within the next week or two.
i'm curious as to where in the course are you up to??
i've finished the first topic (management) and have done a couple of points on the accounting topic.
hey the holidays are almost over.
I was getting ahead in the course a little and was wondering where everyone else was up to?
whether that be in the class or on holidays??
Should we have done the first two topics by now ,as combined, they are near the same length as topic 3 and 4.
hi,
could somebody please try to explain this exam q. to me.
This was a HSC exam Question from a few years ago. I cant understand what the question means by NATURE??? is it human nature?? the question is exactly as it appears but changed from Ridley Scott's 'bladerunner' to the film '1984'...
wow,
just posting for the shear amazment that i'm, like many yr11 students of NSW, now entering my last week of year 11 and my final year of school. Year 11 went so quick,...to quick.
Now it begins...