GRE Question of the Day (January 31st)

Math

If a and b are nonzero integers, which of the following must be negative?

A. \({(-a)^{-2b}}\)

B. \({(-a)^{-3b}}\)

C. \({-(a^{-2b})}\)

D. \({-(a^{-3b})}\)

E. None of these

Correct Answer - C  - (click and drag your mouse to see the answer)

Question Discussion & Explanation