
Maths - what does f (x) mean? - The Student Room
The letter, symbol or even word before the (x) is simply a way of allowing you to know which function it is you are talking about. You can define f (x) to be anything you like, the "f" label is …
what does f' (x) actually mean? - The Student Room
2024年6月17日 · f (x) is a function of x, but f' (x) is the derivative with respect to what seems to make sense. In terms of a-level f' (x) pretty much means dy/dx, but you should realise that d (f …
Mathematics differentiation f prime x or f dash x?
2024年6月4日 · Forums Study Help Maths, science and technology academic help Maths Mathematics differentiation f prime x or f dash x?
Prove f (x) is an increasing function - The Student Room
2015年7月9日 · For it to be an increasing function, f' (x) must always be greater than or equal to 0, for any value of x. If you have f' (x) = x^2 – 2 + x^ (-2), you need to show this is always …
Show there is only one real root - The Student Room
2024年6月3日 · If the curve has no stationary points then f has only one real root. You could find stationary the points (if any exist at all) and show using the geometry of the curve that the …
Oxbridge Maths Interview Questions - Daily Rep - The Student Room
Sketch f (x) = (x - R (x))2, where R (x) is x rounded up or down in the usual way. then sketch g (x) = f (1/x) 33. (a+b)/2 is an integer, is the relationship transitive? (a+b)/3?
Order of graph transformations - The Student Room
2024年6月4日 · Start with f (x), transform to f (x+1) where we're replacing x with x+1, then transform to f (2x+1) where we're replacing x with 2x. If you tried to do it in the other order then …
Points of Inflection - The Student Room
2021年1月7日 · Differentiation help - points of inflection f” (x) Math help - finding the stationary points using second derivative test SQA Advanced Higher Mathematics - Paper 1 Non …
Transformation of graphs , y= f (2x) - The Student Room
2018年3月2日 · You half every y y value, but more often you would rewrite the second eq. by saying that y=\frac {1} {2}f (x) y = 21f (x) and hence it is much more obvious to say that y y …
STEP 2018 Solutions - The Student Room
Note that we have \displaystyle f' (x) = \frac { (1-\log^2 x) (\log^3 x - 3\log^2 x-\log x-1)} {x^2 \log^2 x} f ′(x)= x2log2x(1−log2 x)(log3x− 3log2x− logx− 1) so that we can see that f,f' = 0 f,f ′ = 0 …