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Problem Solving (PS) | Re: Which of the following expressions is equivalent to (s^2 + 9)^(-1/2) ?

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Bunuel wrote:

Which of the following expressions is equivalent to\((s^2 + 9)^{(-\frac{1}{2})}\) ?

A.\(-\frac{s^2 + 9}{2}\)

B.\(-\frac{1}{\sqrt{s^2 + 9}}\)

C.\(-\sqrt{s^2 + 9}\)

D.\(\frac{1}{s+3}\)

E.\(\frac{1}{\sqrt{s^2 + 9}}\)

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