Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

If x^(1 over 3) = y^2, which of the following must be equivalent to x?

(A) y^(1 over 6)

(B) y^(2 over 3)

(C) y^(3 over 2)

(D) y^3

(E) y^6 

正确答案>>>

The correct answer is E

Explanation

If x^(1 over 3) = y^2, then (x^(1 over 3))^3 = (y^2)^3, so x = (x^(1 over 3))^3 = (y^2)^3 = y^6.