A-Level Maths Test | Logs

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Rules of Logarithms

  1. log(a) + log(b) = log(ab)
  2. log(a) - log(b) = log(a/b)
  3. log(a)n = nlog(a)
  4. loga(a) = 1
  5. If loga(x) = 5 then x = a5

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