Simplify The Expression.??

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Simplify The Expression.??

4^ - 1 / 2

a. -16
b. 1 / 16
c. 1 / 2
d. -2

2007-12-28 12:58:47 · 3 answers · asked by . 1 in Science & Mathematics ➔ Mathematics

3 answers

Raising something to a fractional power means two things. Firstly, you raise it to the numerator's power. (4 ^ 1 = 4) and then you take the denominator's root. (square root of 4 = 2). Taking a negative power just means the reciprocal, so 1 over the positive version of the power. (1 / 2)

2007-12-28 13:04:52 · answer #1 · answered by incorrigible_misanthrope 3 · 0⤊ 0⤋

C.

4 ^ 1/2 is saying the squareroot of 4... which is 2.
The negative sign just means .. flip it over 1. therefore, it is.. 1/2

2007-12-29 00:29:35 · answer #2 · answered by Anonymous · 0⤊ 0⤋

ans is C

2007-12-28 21:01:37 · answer #3 · answered by norman 7 · 0⤊ 0⤋