Proof: log a + log b = log ab | Logarithms | Algebra II | Khan Academy



Proof of the logarithm property: log a + log b = log ab

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27 Comments

  1. It's a bummer that these early videos are so sloppy looking and in such low resolution. Half the time I have a hard time reading it and have to go back to listen to what he says again. It would be great to take the time and re-do these videos since all of these series are becoming a long lived reference for students.

  2. I find these videos to be surprisingly amusing when I pretend Sal is a chameleon.
    "Let me switch colors, I think that keeps things interesting."
    "I will never run out of colors. I have infinite colors!"

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