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In order to solve this question, we need to use the chain rule when differentiating. The chain rule formula is dy/dx= (dy/du)(du/dx). Let u=1+x3Differentiating with respect to x gives du/dx...
Simultaneous Equations are equations involving 2 or more unknowns that have the same value in each equation. The aim is to eliminate all but one unknown. This will then allow us to find the value of th...
This can be solved by making an equation for the old price.
Make the old price be equal to x.
To find the new price the old price must be multiplied by the percentage of the...
First, the smallest values of a and b must be found and then substituted into the equation for N.
To find a.
A square number is a number that is the result of multiplying an...
We want to find 125-2/3. To do this, we will need to use lots of power rules that we have learnt.
Firstly, when we put a power to another power, we multiply the two powers. For...
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