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How does proof by induction work?
If I gave you an infinitely tall ladder and asked you to prove to me that there are no rungs missing from the ladder, you wouldn't start to check the ladder rung by rung to see if they are all there, you'd n...
SJ
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Sumer J.
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Further Mathematics tutor
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Integrate cos(log(x)) dx
There are several approaches to integrating this function, thus making this a valuable exercise for students needing to develop fluency with the various techniques of integration and practise dealing with in...
SB
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Samuel B.
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Further Mathematics tutor
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Integrate the function f(x) = x ln (x) over the interval [1,e].
This problem can be solved using integration by parts (IBP), although using IBP multiple times: BASIC IBP METHOD: given an expression integral(u dv) where u and v are functions of a common variable x and 'dv...
JH
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James H.
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Further Mathematics tutor
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Compute the derivative of arcsin(x).
To compute the derivative of arcsin(x) we use the fact that it is the inverse of sine. Write y=arcsin(x). We want dy/dx. Taking sin on both sides yields sin(y)=x. Use implicit differentiation to differentiat...
JP
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John P.
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Further Mathematics tutor
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By use of matrices uniquely solve the following system of equations, justifying each step of the calculation: 3x-7y=6, 5y-2x=-3.
The first thing observe is that we are being asked to use a specific approach in order to solve for both x and y , hence we should not approach this question via elimination of a single variable, though it i...
KM
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Kobe M.
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Further Mathematics tutor
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