Κρυφά πεδία
Βιβλία Βιβλία
" And we may moreover observe, that the sum of the extremes is equal to the sum of any two terms equally distant from the extremes, or to twice the middle term, when the number of terms is odd. "
The Elements of Arithmetic...: In which Decimal and Integral Arithmetic are ... - Σελίδα 127
των Pliny Earle Chase - 1848 - 240 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

A New Treatise of Arithmetick and Book-keeping ...: The Whole Illustrated ...

Alexander Malcolm - 1718 - 396 σελίδες
...Remainder is the other middle Term. Profofition 3d, IN an Arithmetical Progrejjion, (V. Definition 5th) the Sum of the Extremes is equal to the Sum of any two Terms, at equal Diilance from them ; or to double the middle Term (if the Number of Terms are odd; ) confequently...

An Introduction to Algebra: Being the First Part of a Course of Mathematics ...

Jeremiah Day - 1814 - 304 σελίδες
...The sums will be Here we discover the important property, that, 428. In an arithmetical progression, the sum of the extremes is equal to the sum of any other two terms equally distant from the extremes. In the series of numbers above, the sum of the first...

The Young Man's Best Companion and Guide to Useful Knowledge

John Dougall - 1815 - 514 σελίδες
...extremes, and the 2nd and 3rd the means. The fondamental property of numbers in arithmetical proportion is that the sum of the extremes is equal to the sum of the means ! tims in 5, 10, 8, 13, the sum of the extremes § and 13, or 18, is equal to the sum of...

The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

1817 - 214 σελίδες
...called the extremes. JVote. — In any series of numbers in arithmetical progression, the sum of the two extremes is equal to the sum of any two terms equally distant from them ; as in the latter of the above series 6-fl=4-f-3, and=5-{-2. Whei. the number of terms is odd,...

The Teachers' Assistant: Or a System of Practical Arithmetic

Stephen Pike - 1824 - 212 σελίδες
...called the extremes. Note. — In any series of numbers in arithmetical progression, the sum of the two extremes is equal to the sum of any two terms equally distant from them; as in the latter of the above series 6 + 1=4+3, and =5+2. When the number of terms is odd, the...

A Theoretical and Practical Arithmetic: In which the Principles of that ...

Bézout - 1825 - 258 σελίδες
...PROPERTIES OF ARITHMETICAL PROPORTION. 176. The fundamental property of arithmetical proportion, is that the sum of -the extremes is equal to the sum of the •means : for example, in this proportion 3.7:8.12, the sum 3 and 12 of the extremes, and that...

Elements of Arithmetic, Theoretical and Practical: Adapted to the Use of ...

Ferdinand Rudolph Hassler - 1826 - 224 σελίδες
...deduced from the nature of the series, in the following manner. As we found in arithmetic proportion that the sum of the extremes is equal to the sum of the means, so it is evident that here the sum of the extremes is equal to the sum of any two terms...

A Concise System of Mathematics ...

Alexander Ingram - 1830 - 458 σελίδες
...the nth term is n — 1. Cor. — Hence y = a + (n — l)d, and a =y — (n — l)d. PROP. II. — The sum of the extremes is equal to the sum of any two terms equally distant from them. For any term exceeds the least, as much as its corresponding term is less than the greatest....

The Juvenile Arithmetick, and Scholar's Guide: Illustrated with Familiar ...

Martin Ruter - 1831 - 190 σελίδες
...&,c. — the common dil ference is 3. In any series in Arithmetical Progression, the sum o the two extremes is equal to the sum of any two terms equally distant from them, or equal to double the mid die term when there is an uneven number o£ terms i lie series. Thus,...

Conkling's Arithmetic: The Young Arithmetician's Guide to a Knowledge of ...

Thomas Conkling (W.) - 1831 - 302 σελίδες
...half the number of terms. * In any series of numbers, in arithmetical progression, the sum of the two extremes is equal to the sum of any two terms equally distant from then}; as in the series above, 2 +• 10, is equal to 4 +• 8, &c. : ' When the number of terms is...




  1. Η βιβλιοθήκη μου
  2. Βοήθεια
  3. Σύνθετη Αναζήτηση Βιβλίων
  4. Λήψη ePub
  5. Λήψη PDF