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As with any question involving sines and cosines, consider complex numbers as a likely way to find the answer. For this particular kind of question, where sin/cos of a multiple of x is needed in terms of sin...

First things first, we have to decide what type of equation this is, so we can choose how to deal with it. If it were linear (which means every term involving an 'x' has no power/superscript on it. I.e. x 2 ...

There are several different methods for solving quadratic equations. The method you use depends on the equation in question. Usually, the easiest method is by factorising the quadratic, so you want to check ...

To solve this equation we have two different methods: 1) We can solve this method 'by hand' and is done by knowing how to factorise the quadratic and is done by looking at the equation given to us to find hi...

This might be hard at first, but if you work through step by step you'll get there! Start by getting rid of the fraction, multiply both sides by (3x-1) to get y(3x-1) = 2(1+x) Multiply out the brackets: 3yx-...