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Academics – Mathematics : 2014/APR/04
Question

Q4. (a) Solve the following equation for x in the range x > 0: (6)

log (x2 + 23) – log (x + 1) = log 8

(b) Simplify fully using rules of indices: (5)

(8a6 b9 c3 )2/3/(2a2 bc3 )2

(c) Solve for t in the following equation: (5)

3 = 14e-0.05t

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