👉 Learn how to find the derivative of exponential and logarithmic expressions. The derivative of a function, y = f(x), is ...

\({\log _a}a = 1\) (since \({a^1} = a\)) so \({\log _7}7 = 1\) \({\log _a}1 = 0\) (since \({a^0} = 1\)) so \({\log _{20}}1 = 0\) \({\log _a}p + {\log _a}q = {\log _a ...

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Major reforms and inventions often begin with a line of mathematics. For students, equations can look abstract on a classroom ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...