.

$\displaystyle log_3(5) \ \ \ or \ \ \ log_6(14)$

You can use a calculator with the four basic operations of

addition, subtraction, multiplication, and division. Also,

you can use the square root key. No logarithm or

exponential keys may be used.

The formula for $\displaystyle \ \ log_e(1 + x) \ = \ \dfrac{x^1}{1} \ - \ \dfrac{x^2}{2} \ + \ \dfrac{x^3}{3} \ - \ ... \ \ \ $

may be used (for the appropriate x-values).

Exponential and logarithmic rules are available for use.