MATHEMATICS PROBLEM SOLVER

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Thursday 11 February 2016

LOGARITHMS - 6

Simplify Log₂128 - Log₃81

Solution

= Log₂128 - Log₃81

= Log₂2⁷ - Log₃3⁴

= 7Log₂2 - 4Log₃3

= (7 x 1) - (4 x 1)

= 7 - 4

= 3

Hence Log₂128 - Log₃27 = 3

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NECTA 1995 QN. 24b

Simplify Log₂64 - Log₃9

MATHEMATICS PROBLEM SOLVER

Thursday 11 February 2016

LOGARITHMS - 6

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