katherineomg912
katherineomg912
12-11-2014
Mathematics
contestada
Simplify sqrt 3× sqrt 27
Respuesta :
here2help
here2help
12-11-2014
[√3] * [√27] = √3 * √[9*3] = √3 *3√3 = 3 * 3 = 9,
or [√3] * [√27] = √[3*27] = √[81] = 9.
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Аноним
Аноним
12-11-2014
√3√27
=√(3*27)
=√81
=9
As 9*9=81.
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RULES:
√a√b=√ab
As (√a√b)²=((√a)²(√b)²)=√a√a√b√b=ab
When:
(√a√b)²=ab
√a√b=√ab
Answer Link
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