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Azteck
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If \[x_{1}, x_{2},...,x_{n}\] are given numbers, show that \[(x_{1}x)^{2} +(x_{2}x)^{2}+...+(x_{n}x)^{2}\] is least when x is the arithmetic mean of \[x_{1}, x_{2},..., x_{n}.
 one year ago
 one year ago
Azteck Group Title
If \[x_{1}, x_{2},...,x_{n}\] are given numbers, show that \[(x_{1}x)^{2} +(x_{2}x)^{2}+...+(x_{n}x)^{2}\] is least when x is the arithmetic mean of \[x_{1}, x_{2},..., x_{n}.
 one year ago
 one year ago

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Azteck Group TitleBest ResponseYou've already chosen the best response.1
\[x_{1}, x_{2},..., x_{n}\]
 one year ago

LogicalApple Group TitleBest ResponseYou've already chosen the best response.4
Let S be the summation \[S = (x _{1}  x)^{2} + (x _{2}  x)^{2} + . . . + (x _{n}  x)^{2}\] Find the derivative of S
 one year ago

LogicalApple Group TitleBest ResponseYou've already chosen the best response.4
Remember that the only variable here is x, all the x's with subscripts are constants.
 one year ago

Azteck Group TitleBest ResponseYou've already chosen the best response.1
Yep. I'm just getting the sum of that AP
 one year ago

Azteck Group TitleBest ResponseYou've already chosen the best response.1
Yeah this one was easier than the question before. Thanks.
 one year ago
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