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Logarithms

Rules of logarithms - log 10 and log e for numbers ranging 1 to 1000

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logb (xy) = logb x + logb y         (1)

logb (x/y) = logb x - logb y         (2)

logb xp = p logb x         (3)

logb (1/x) = - logb x         (4)

logb b = 1         (5)

logb 1 = 0         (6)

logb x = loga x logb a         (7)

log 10 and log e for numbers ranging 1 to 1000

are indicated below:

numbers - ln log e log 10

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