How do you calculate log_(7) 49?

1 Answer
Alan P.
May 12, 2016

log_7 49 = color(blue)(2)

Explanation:

By observation 7^2 =49
and we know that
color(white)("XXX")log_b a = c
means a=b^c

So log_7 49=c
means 7^2=7^c

and therefore
color(white)("XXX")c=2

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