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" A mean proportional between two numbers is equal to the square root of their product. "
Higher Arithmetic, Or, the Science and Application of Numbers: Combining the ... - Σελίδα 374
των James Bates Thomson - 1862 - 422 σελίδες
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Algebra

William Raymond Longley, Harry Brooks Marsh - 1926 - 608 σελίδες
...geometric series with a constant ratio. Hence „ Cr _ 0 -a-~ G' G2 = ab. 1П G = Väb. The geometric mean between two numbers is equal to the square root of their product. 209. Problems. In most problems having to do with geometric series, five quantities are involved, a,...

A Common School Arithmetic

Daniel Barnard Hagar - 1871 - 352 σελίδες
...-1/36 = 6 tlle extremes of a proportion is one of the equal means of the proportion (Art. 547), the mean proportional between two numbers is equal to the square root of the product of those numbers. The product of 4 by 9 is 36, and the square root of 36 is 6, the mean...




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