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To find the derivative of any number to the power "x", such as 2^x, 5^x, or even 4.13^x, we first consider the general form a^x. We need to be a little cr...

We firstly need to look how to factorise quadratics. (x    )(x    ) By looking at this, we need 2 numbers that add together to make -1. We need 2 numbers that multiply to make -6. To multiply to make -6, ...

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...

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