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anonymous
 4 years ago
simplify the radical expression.
(square root of 10/121)
anonymous
 4 years ago
simplify the radical expression. (square root of 10/121)

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campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1\[\sqrt{\frac{10}{121}} = \pm \frac{\sqrt{10}}{11}\]

alexwee123
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1335940997334:dw

thomas5267
 4 years ago
Best ResponseYou've already chosen the best response.0The square of something is always positive. So the correct answer should be \(\frac{\sqrt{10}}{11}\).

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1ok... so \[\sqrt{\frac{10}{(11)^2}} \neq \sqrt{\frac{10}{121}}\]

thomas5267
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry, I mean the square root of real numbers are always positive. Sources: http://mathworld.wolfram.com/SquareRoot.html http://en.wikipedia.org/wiki/Square_root
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