Question:
Which of the following is equal to (-3/4)-3?
(a) (3/4)-3
(b) – (3/4)-3
(c) (4/3)3
(d) (-4/3)3
Solution:
(d) (-4/3)3
Explanation: (-3/4)-3 = 1/(-3/4)3 = (-4/3)3
(By the law of exponents: a-n = 1/an)
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