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Firstly, I apologise for the late reply. :/ You may not need this anymore, but this question is really interesting!URGENT HELP NEEDED:
this Q isnt directly from Alevel math but it might brush up the skills of all the mathematicians out there. So PLEASE give it a try:
A person is trapped in a dark cave with 3 ways out. One of them leads to safety after 2hrs of travel while the other 2 would return him to the cave after 3 and 5hrs of travel respectively. Assuming that the person is equally likely to opt for any of the openings at all times, what is the expected length of time he spends travelling until reaching safety?
salam!
can anyone help me with how to differentiate and integrate expresion involvin brakets e.g (3x^2+2x)^3
thanks!
In Stats 1 year 2012 q 4, how are we supposed to find the median and interquartile range? Do we do it by writing them all down or is there a specific method of doing it?
Here's the paper I am talking about: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s12_qp_62.pdf
I need help in how to differentiate sin^3 (X)
The answer is 3sin^2(2X)
Thanks in advance
I got 17920 too :/ , maybe the answer is corrected to the nearest 100thPretty simple question from mechanics.
A lift bringing miners to the surface of a mine shaft is moving with an acceleration of 1.2 m.s-2 . The total mass of the cage and the miners is 1600kg. Find the tension in the cable.
For some reason I'm getting 17920, where as the answer is 17900. Ugh, help please .___.
I got 17920 too :/ , maybe the answer is corrected to the nearest 100th
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