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First of all, transform both z1 and z2 into modulus-argument form. To obtain that form, you are going to need a modulus (the length of the hypotenuse on the Argand diagram) and argum...
We should begin by multiplying out the brackets. Firstly, multiply each term in the first bracket with the first term in the second bracket: x times x equals x2 and -2 multiplied by x is equal ...
This question is an example of integrating to find the area underneath a curve between two points. We begin by intergrating the equation. Firstly, to integrate 3x2 we increase the indice/power ...
3:2 means there are 5 parts. So 18 litres can be divided by 5, and the price of each part worked out individuallly.
18 / 5 = 3.6
To work out how much the white paint costs: 3.6 x £2.80 = £10...
Begin by differentiating each term w.r.t x: d/dx(x^3) + d/dx(yx^2) = d/dx(y^2) + d/dx(1). the terms x^3 and 1 are simple enough to start of with: d/dx(x^3) = 3x^2 and d/dx(1) = 0. Next use the chain rule ...
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