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  • Brainly User
2015-09-30T11:43:56+08:00

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 \sqrt[16]{a ^{16} } = a

 \sqrt[3]{27x^{27} } = 3 x^{9}

 \sqrt{64x ^{6} } = 8x^{3}

 \sqrt[3]{64 x^{6} } = 4 x^{2}

 \sqrt[3]{0.001x^{3} }  = 0.1x

 \sqrt[4]{81x ^{4} } = 3x

 \sqrt[5]{729a ^{2} } = 3 \sqrt[5]{3a ^{2} }

Last expression is not clear :-(

Note:  You must memorize the perfect squares and perfect cubes, or learn the technique finding the roots by continuous division.
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