Question 1:

(27^2/3 * 9^1/2 * 81^1/4)^-1/4 = ?

A. 3

B. 9

C. 1/3

Feedback (27^2/3 * 9^1/2 * 81^1/4)^-1/4 = [(3³)^2/3 * (3²)^1/2 * (3⁴)^1/4]^-1/4

= (3² * 3 * 3)^-1/4 = (3⁴)^-1/4 = 1/3.

D. 1/9

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