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Firstly, to find the stationary points of a curve you must differentiate the equation of the curve. To do this each x component is multiplied by its current power and then the power is decreased by one. A...

Both ser and estar mean ‘to be’ but each has different uses. This can be confusing for native English speakers because in English there is only one word. Ser is used when we want to describe characteristi...

Outsourcing refers to the third party production process undertaken by large, international firms. Rather than producing a product internally, firms will look to external manufacturers. An advantage of Ou...

(2+5) x -6 = 42

Firstly, we need to find two numbers that multiply together to make -15 and sum together to make +2. We try a few numbers and find that the solution is -3 and 5, as -3 x 5 = -15 and -3 + 5 = 2.Next you in...