All this historical information was a way to introduce this week's math puzzle.
Q: Using each of the digits in 2008 and standard math operations, can you write an expression that equals 97?Rules:
- Each of the digits 2, 0, 0, 8 must be used. (2 and 8 will appear once, 0 will appear twice.)
- You may use standard math operations of +, -, x, /, √(square root), ^(raise to a power) and !(factorial) along with parentheses for grouping.
- Decimal points and multi-digit numbers may be used (e.g. 20, 208, .02 or 2.8
- If squaring is done, that uses up the digit 2.
- 0! is agreed to have a value of 1.
- Anything raised to the zero power (i.e. x^0) is 1, but 0^0 may not be used (undefined)
- The integer/floor/ceiling/round functions may NOT be used.
- Change of bases may NOT be used.
- Logarithms may NOT be used.
- Sine and Cosine may NOT be used.