SAT Math Question of the Day

Math Category: Exponents Level 1:

Q: What is 1-1?

  1. -1
  2. 0
  3. 1
  4. 2
  5. 3

UNANSWERED.

The correct answer is C.

A: The answer is 1. A number to the -1 power is 1 divided by the number. So 1/1 = 1.