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Logarithms, SMB-007

Use the change of base formula to evaluate  `log_7 13`, correct to two decimal places.  (1 mark)

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`1.32\ \ text{(to 2 d.p.)}`

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`log_7 13` `= (log_10 13)/(log_10 7)`
  `= 1.3181…`
  `= 1.32\ \ text{(to 2 d.p.)}`

Filed Under: Logarithms Tagged With: num-title-ct-patha, smc-4243-50-Change of base

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