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- Thread starter Mr Davis 97
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- #2

mfb

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In the real numbers that works.

- #3

Stephen Tashi

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Are you asking whether ##|n r^n|^{1/n} = | (n r^n)^{1/n}| ## ?whether I can allow the exponent to go inside of the absolute value.

Try ##r = 1,\ n = -2##.

- #4

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So it's not generally true then? What if ##n## is positive?Are you asking whether ##|n r^n|^{1/n} = | (n r^n)^{1/n}| ## ?

Try ##r = 1,\ n = -2##.

- #5

mathman

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If n and r are both positive then absolute value can be ignored.

- #6

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Well ##n## is positive while ##r## is not necessarily positive.If n and r are both positive then absolute value can be ignored.

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