Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 Βιβλία Βιβλία 1 - 5 από 5 για CASE tt 344. Given the first term, the ratio, and the number of terms, to find the.... CASE tt 344. Given the first term, the ratio, and the number of terms, to find the sum of the terms. Let a denote the first term, r the ratio, n the number of terms, and i- the sum of the terms. Then, S = a + ar + ar... A Key to Dilworth's Arithmetic: Wherein Every Question is Worked Out at Full ... - Σελίδα 140
των A teacher of arithmetic in New-York - 1812 - 312 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## New Elementary Algebra: In which the First Principles of Analysis are ...

Benjamin Greenleaf - 1864 - 324 σελίδες
...Given the first term, the ratio, and the number of terms, to find the sum of the terms. Let a denote the first term, r the ratio, n the number of terms, and S the sum of the terms. Then, 5= a + ar + at3 + ar8 + ar*-* + ai~- » (1) Multiplying by r, rS=ar +... ## Treatise on the elements of algebra

James Bryce - 1872
...ratio and unity ; observing that the last term becomes zero, in an infinite decreasing series. Let a be the first term, r the ratio, n the number of terms, and s the sum of the series ; then * = a + ar + ar' + ar* + ar* . . . . + ar*~ l. Multiplying both sides... ## New Elementary Algebra

Benjamin Greenleaf - 1878
...Given the first term, the ratio, and the number of terms, to find the sum of the terms. Let a denote the first term, r the ratio, n the number of terms, and i- the sum of the terms. Then, S = a + ar + ar' + ar* ...... + a r— 2 + a r— * (1) Multiplying by r, rS = ar + <jr2... ## New Elementary Algebra: Designed for the Use of High Schools and ..., Βιβλίο 1

Benjamin Greenleaf - 1879 - 336 σελίδες
...Given the first term, the ratio, and the number of terms, to find the sum of the terms. Let a denote the first term, r the ratio, n the number of terms, and iS the sum of the terms. Then, S = a + ar + ar!-f ar3 + a r»-2 + a r"-1 (1) Multiplying by r, rS =... ## Elementary Algebra with a Table of Logarithms

Julius Lederer Neufeld - 1920 - 383 σελίδες
...per cent each year, what is its value at the end of 5 years? THE SUM OF A FINITE GEOMETRICAL SERIES Let a = the first term r = the ratio n = the number of terms I = the last term s = the sum of the terms Then s = o + ar + or2 + ar3 + ar2 + . . + ar"-1 (1) Multiply...