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A derivative, in essence, is the gradient of a function at a point, usually denoted by dy/dx, or f'(x). It essentially means the rate of change of y with respect to x. As many functions are complex, we ca...

A correlation coefficient is a value between -1 and =1 which indicates the direction and strength of a relationship between two variables. As you may already know, correlations only depict a relationship ...

Inflation can be described as the constant tendency for price levels to rise in an economy. There are many factors involved which determine the overall effect of inflation on a business. Firstly, an incre...

Expand and simplify (n + 2)³ − n³.
Write out the brackets in full:(n + 2)(n + 2)(n + 2) − n³
Use F.O.I.L. (...

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