Mathematics > Standard Multiple Choice

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

　　Ifx^(1 over 3) = y^2, which of the following must be equivalent tox?

　　(A)y^(1 over 6)

　　(B)y^(2 over 3)

　　(C)y^(3 over 2)

　　(D)y^3

　　(E)y^6

　　Explanation

　　Ifx^(1 over 3) = y^2, then(x^(1 over 3))^3 = (y^2)^3, sox = (x^(1 over 3))^3 = (y^2)^3 = y^6.

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　　（编辑：马菲）