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In order to find the equation of the tangent line, first we have to find its slope. To do this, we take the first derivative of the function. In this particular case, we just need to apply the power rule ...

Firstly, we need to recognise that the question stated that the quadratic equation has equal roots. This tells us that the discriminant of the equation (b^2 - 4ac) will be an important pa...

The strength of an acid refers to the level of which it dissociates in an aqueous solution. Dissociation is a process in which molecules can split into smaller ones, atoms or ions. In the case of an acid,...

There is always a systematic approach to answering questions that require you to complete the square. Before you start answering the question make sure the coefficient of x^2 is 1. For th...

When you're asked to compare two or more different texts in an exam question the focus is crucially on the comparison. Throughout the essay, whatever topic or theme you are exploring, you must constantly ...