ACT Preparation / Unit 12 ACT 1114 short lesson, about 20 seconds
Change of Base
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The idea
Any logarithm can be rewritten in another base: log_b x = log x / log b, using common or natural logs.
In practice
log₂ 10 = log 10 / log 2 = 1 / 0.3010, about 3.32.
Where people slip
Divide the logs; do not take the log of the quotient: log 10 / log 2 is not log 5.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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