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Everything that is NOT provided on the Mathematics Advanced reference sheet that requires memorisation
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First Principles Derivative Definition
f’(x) = lim h→0 f(x+h)-f(x)/h
Vertex
-b/2a
Midpoint Formula
M = ( (x1+x2)/2, (y1+y2)/2 )
Distance Formula
d = /(x2-x1)² + (y2-y1)²