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 Livres Livres 1 - 3 sur 3 pour RULE. Multiply the sum of the two extremes by half the number of terms, the product.... RULE. Multiply the sum of the two extremes by half the number of terms, the product will be the sum of all the terms. The Young Mathematician's Guide: Being a Plain and Easy Introduction to the ... - Page 395
de John Ward - 1747 - 480 pages
Affichage du livre entier - À propos de ce livre ## The Young Mathematician's Guide: Being a Plain and Easie Introduction to the ...

John Ward (of Chester.) - 1724 - 456 pages
...&c. Or 3. 3. 3. 3. &c. If one of the Terms be mullipfa'd int» tke Number of Terms } the Prcduti wilt be the Sum of all the Terms in the Series. This is...no Example. LEMMA II. If the Series of Numbers in Arithmetic); frogreljion begin with it Cyflier, and, the common Difference be i. As oi 2. 3. 4. &c,...
Affichage du livre entier - À propos de ce livre ## A system of arithmetic, with the principles of logarithms

...terms. Ans. 1260 Sum of all terms. RULE — Add the extremes together, and multiply the sum by half the number of terms. The product will be the sum of all the terms. EXERCISES. 1. If the least term be 3, the greatest 108, and the number of terms 14, what is the sum...
Affichage du livre entier - À propos de ce livre ## Walkingame's arithmetic [his Tutor's assistant] simplified and improved. [&c ...

Francis Walkingame - 1859
...second, and third terms given to find thefißh. RULE. Multiply the sum of the two extremes by half the number of terms ; the product will be the sum of all the terms. f, I, n, are given to find s. Thus,/,+/,xя,=s. 1. How many strokes does the hammer of a clock strike...
Affichage du livre entier - À propos de ce livre