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− | <math><mrow><mi>cos</mi><mo>⁡</mo><mrow><mo>(</mo><mi>θ</mi><mo>+</mo><mi>φ</mi><mo>)</mo></mrow><mo>=</mo><mi>cos</mi><mo>⁡</mo><mrow><mo>(</mo><mi>θ</mi><mo>)</mo></mrow><mi>cos</mi><mo>⁡</mo><mrow><mo>(</mo><mi>φ</mi><mo>)</mo></mrow><mo>−</mo><mi>sin</mi><mo>⁡</mo><mrow><mo>(</mo><mi>θ</mi><mo>)</mo></mrow><mi>sin</mi><mo>⁡</mo><mrow><mo>(</mo><mi>φ</mi><mo>)</mo></mrow></mrow></math> | + | <math>x=−b±b2−4ac−−−−−−−√2a</math> |
Revision as of 17:39, 5 November 2012
\(
\sum f(x) = F(x) + g(x)
\)
\(x=−b±b2−4ac−−−−−−−√2a\)