INSTRUCTORSCarleen EatonGrant Fraser

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Base 'e' and Natural Logarithms

  • To solve exponential equations or inequalities involving base e, take the natural log (ln) of both sides.

  • To solve natural log equations or inequalities, write each side as a power of e. Always check for extraneous solutions -- values which result in taking the logarithm of a non-positive value in the original equation or inequality. Exclude such values from the solution set.

Base 'e' and Natural Logarithms

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