...the (m) Powers of Quantities ini arithmetical Progreffion from o, is equal to the Product of the Jaft Term, by the Number of Terms ; and this divided by the Index (m) plus i. Which amounts to this; fuppofing o, i, 2, 3, 4, &c. x, to be an arithmetical Progreffion, confifting...

...of (the m) m -f- 1 Powers of Quantities in Arithmetick Progreflion from o, is equal to the Product of the laft Term by the Number of Terms, and this divided by the Index (m) plus Unity. Lemma V. If a Scries of Biquadrates, whofe Roots are in Arithmetick Progreffion, beginning...