exam Maths Puzzle Numerical Ability

Evaluate the logarithm

log (7, 1/49)

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Question � 1: The gradient of the graph of f(x) at any point is,ax^2-12x+9 , and the point, (2,−3) , is an inflection point of f(x).

(a) Find the value of the real constan If i = square root of (-1), simplify: i / (4+3i)