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Maths
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Show that, for all a, b and c, a^log_b (c) = c^log_b (a).
We want to prove:
alogb(c) = clogb(a).
Recall that we can always write x = eln(x), so xy = (eln(x))y
Sketch the curve y = x^2 - 6x + 5, identifying roots and minima/maxima.
Remeber the formula: (a - b)2 = a2 - 2ab + b2. Notice that y = x2 - 23x + 5, so we want to write this using (x - 3)
