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thanks. ive worked it out now...
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This is probably really easy for all you guys, but I can't see the answer:
Given that log 2 = 0.3, show that log 5 = 0.7
Thanks in advance.
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^assuming that is correct^
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And it does have one use: I got an offer from a uni based on an interview where I had to prove that (2^0.5) was irrational' date=' and I used that proof
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Ollie[/quote']
How exactly did you use this proof because if you use this proof for 2^0.5, then in Fermat's last theorem, n=2, which doesn't contradict Fermat's last theorem.
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the thing is, this was set as a sort of 'brainteaser' question, so i was wondering if there was a simple, almost 'sneaky' way of doing it...
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11131221131211131231121113112221121321132132211331222113112211
- i think...!
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Does anybody have any ideas on how to work out [imath]\sqrt{0.9}[/imath] without a calculator (to approx 10 d.p.)?
I know there are a few methods for working out for working out square roots by hand, but i was wondering if there was a cleverer/easier way of doing it.
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why does women = time * money and not women = time + money?
- that's true. I originally saw this proof for 'teletubbies', for which it worked, because they were the PRODUCT of time and money (hence multiplication)...
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[math]\pi=\frac{diameter}{circumfrence}[/math]
That is all.
actually' date=' [math']\pi=\frac{circumference}{diameter}[/math]
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i was wondering if somebody had any ideas about this:
the gradient of a horizontal line = 0
the gradient of a vertical line = infinity
but the product of the gradients of perpendicular lines is -1
so does that mean that 0 x infinity = -1 ???
... or is there something in the proof for the product of the gradients equalling -1 which excludes it for these values?
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Integral of tan
in Analysis and Calculus
Posted
Please could you tell me how to integrate tan^3[x] without integration by parts.
i know that tan^2x = sec^2 x - 1
thanks in advance.