1953 AHSME Problems/Problem 21
Problem
If , the value of
is:
Solution
We know that , after expanding the logarithm. Taking the 10 to the other side,
. Factoring, we get
, so
.
If , the value of
is:
We know that , after expanding the logarithm. Taking the 10 to the other side,
. Factoring, we get
, so
.
Something appears to not have loaded correctly.