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Firstly, you can see from the equation that each bracket must contain an x since these multiply together to give the x2. So you get (x..)(x..)
Next, to obtain the last number o...
8(x-1) = 63x
23(x-1) = (2 * 3)3x
23x * 2-3 = 23x * 33x / : 23x
Graph sketching can look like an intimidating process at times, but is easily broken down into a collection of fairly easy stages.
In summary:
Factoris...
You have to write it in terms of cos(2x) using the double angle formula. The same applies for intergrating cos^2(x), you again have to write it in terms of cos(2x) using the same double angle formula.<...
1. First you need to learn how to recognise the form:
Difference of two square numbers. a2 - 36
(a2 is a square number and 36 is also a ...
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