Question

Prove that: $ \left( \sum\limits_{i\neq j}a_{i}b_{j} \right)^2 \geq \sum\limits_{i\neq j}a_{i}a_{j} \sum\limits_{i\neq j}b_{i}b_{j}$

score 242 · Answer 1 · 2015-01-06 10:20:31

242

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Prove that: $ \left( \sum\limits_{i\neq j}a_{i}b_{j} \right)^2 \geq \sum\limits_{i\neq j}a_{i}a_{j} \sum\limits_{i\neq j}b_{i}b_{j}$

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623

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List Question

Prove that: $ \left( \sum\limits_{i\neq j}a_{i}b_{j} \right)^2 \geq \sum\limits_{i\neq j}a_{i}a_{j} \sum\limits_{i\neq j}b_{i}b_{j}$

reconstructing a quadratic equation from roots

Find constant a where quadratic equation equals zero

Solving $2^{2x+1} - 2^{x+4} = 2^3 - 2^x$

Does the quadratic formula always work for a quadratic?

Optimization: maximum area of a triangle under a parabola

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Evaluating$\int\frac{1}{(x^2-1)^2}$

Computing Coefficients of a Quadratic Equation given definite Integral

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Quadratic form on Vector Bundle

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Computing Coefficients of a Quadratic Equations given Definite Integral, Height and Rate of Change

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