Question

find mean proportional between 6+
root 27 and 6- root 27


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Answer 1

$(6 + \sqrt{27} + 6 - \sqrt{27}) \div 2 \\ (6 + 6) \div 2 \\ 12 \div 2 \\ 6$

Answer 2

6+3ROOT3

6-3ROOT3

[6+3ROOT3+6-3ROOT3]/2

12/2

6

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