Pure mathematics, Volume 2

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Page 20 - Three lines are in harmonical proportion, when the first is to the third, as the difference between the first and second, is to the difference between the second and third ; and the second is called a harmonic mean between the first and third. The expression 'harmonical proportion...
Page 368 - FRENCH EXERCISES FOR ADVANCED PUPILS, containing the Principal Rules of French Syntax, numerous French and English Exercises on Rules and Idioms, and a Dictionary of nearly 4000 Idiomatical Verbs and Sentences, familiar Phrases, and Proverbs.
Page 81 - In what time will a sum of money double itself at 5 per cent., compound interest?
Page 291 - Any two sides of a spherical triangle are together greater than the third side.
Page 15 - t shillings in a row reach as far as n sovereigns, and a pile of p shillings is as high as a pile of q sovereigns ; compare the values of equal bulks of gold and silver.

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