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  2. 1/2 + 1/4 + 1/8 + 1/16 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%2B_1/4_%2B_1/8_%2B_1/...

    1/2 + 1/4 + 1/8 + 1/16 + ⋯. First six summands drawn as portions of a square. The geometric series on the real line. In mathematics, the infinite series ⁠ 1 2 ⁠ + ⁠ 1 4 ⁠ + ⁠ 1 8 ⁠ + ⁠ 1 16 ⁠ + ··· is an elementary example of a geometric series that converges absolutely. The sum of the series is 1. In summation notation ...

  3. 1/4 + 1/16 + 1/64 + 1/256 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/4_%2B_1/16_%2B_1/64_%2B...

    1/4 + 1/16 + 1/64 + 1/256 + ⋯. Archimedes' figure with a = ⁠ 3 4 ⁠. In mathematics, the infinite series ⁠ 1 4 ⁠ + ⁠ 1 16 ⁠ + ⁠ 1 64 ⁠ + ⁠ 1 256 ⁠ + ⋯ is an example of one of the first infinite series to be summed in the history of mathematics; it was used by Archimedes circa 250–200 BC. [1] As it is a geometric series ...

  4. Discounts and allowances - Wikipedia

    en.wikipedia.org/wiki/Discounts_and_allowances

    2/10 net 30 - this means the buyer must pay within 30 days of the invoice date, but will receive a 2% discount if they pay within 10 days of the invoice date. 3/7 EOM - this means the buyer will receive a cash discount of 3% if the bill is paid within 7 days after the end of the month indicated on the invoice date.

  5. 1/2 − 1/4 + 1/8 − 1/16 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%E2%88%92_1/4_%2B_1/8...

    1/21/4 + 1/8 − 1/16 + ⋯. Demonstration that 1 21 4 + 1 8 − 1 16 + ⋯ = 1 3. In mathematics, the infinite series 1/21/4 + 1/8 − 1/16 + ⋯ is a simple example of an alternating series that converges absolutely . It is a geometric series whose first term is 1 2 and whose common ratio is − 1 2, so its sum is.

  6. Basic Allowance for Housing - Wikipedia

    en.wikipedia.org/wiki/Basic_Allowance_for_Housing

    BAH is non-taxable money paid on a monthly basis. There are 3 factors for determining the amount of BAH: Marital status [4] – In Britain, this allowance used to be called "marriage allowance" in the 1930s. [5] In the United States, as of 2018, the U.S. military required its members to produce marriage documentation. [6]

  7. Smith & Wesson Model 1 1/2 - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_Model_1_1/2

    The Smith & Wesson Model 12 was Smith & Wesson's second .32 caliber revolver, intended to combine the small size and convenience of the .22 caliber Model 1 with the larger caliber of the 6-shot "belt sized" Model 2, which was introduced in 1861. Chambered in .32 Rimfire, its cylinder held 5 shots. It was produced in three varieties from 1865 ...

  8. Bell X-2 - Wikipedia

    en.wikipedia.org/wiki/Bell_X-2

    The Bell X-2 (nicknamed "Starbuster" [1]) was an X-plane research aircraft built to investigate flight characteristics in the Mach 2–3 range. The X-2 was a rocket-powered, swept-wing research aircraft developed jointly in 1945 by Bell Aircraft Corporation, the United States Air Force and the National Advisory Committee for Aeronautics (NACA) to explore aerodynamic problems of supersonic ...

  9. Binomial theorem - Wikipedia

    en.wikipedia.org/wiki/Binomial_theorem

    In elementary algebra, the binomial theorem (or binomial expansion) describes the algebraic expansion of powers of a binomial.According to the theorem, it is possible to expand the polynomial (x + y) n into a sum involving terms of the form ax b y c, where the exponents b and c are nonnegative integers with b + c = n, and the coefficient a of each term is a specific positive integer depending ...