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In order to find the stationary points of any funcion, you must differentiate. Once you have differentiated, the deriviate of this function must be set equal to 0, in order to determine what the stationar...

In Spanish, questions are phrased and structured a bit differently to what we're used to in English. Questions beginning with "are there" or "do you" in English, for ...

To explain this question to a student, I would initially ask my own questions in order to gain an understanding of what the student already knows about simultaneous equations. I would ask if they had seen...

7.4²-2.9²=answer²

square root above answer to get the answer

You can use pythagoras' theorem to find the length of a side of a right angled triangle, provided that at least two of the lengths of the sides are known. The general rule is a² + b²...