MATHEMATICS PROBLEM SOLVER

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Tuesday 1 December 2015

FUNCTIONS 1

If F(x) = log₅x, Find F(¹/₁₂₅)

Solution

F(x) = log₅x

F(¹/₁₂₅) = log₅(¹/₁₂₅)

F(¹/₁₂₅) = log₃125^-1

F(¹/₁₂₅) = log₅(5³)^-1

F(¹/₁₂₅) = log₅5⁽³ ^x ^-1)

F(¹/₁₂₅) = log₅5^-3

F(¹/₁₂₅) = -3log₅5

F(¹/₁₂₅) = -3 x 1

F(¹/₁₂₅) = -3

Therefore F(¹/₁₂₅) = - 3

TRY THIS...............

If F(x) = log₃x, Find F(¹/₇₂₉)

MATHEMATICS PROBLEM SOLVER

Tuesday 1 December 2015

FUNCTIONS 1

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