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  2. 1, 2, 3, 4 (Sumpin' New) - Wikipedia

    en.wikipedia.org/wiki/1,_2,_3,_4_(Sumpin'_New)

    Larry Flick from Billboard described the song as "a jumpy, funk-lined jeep anthem that allows Coolio plenty of room to work up a fun, lyrical sweat."He added, "The sample-happy groove provides a wigglin' good time, riding primarily on a prominent snippet of the early '80s 12-incher "Wikka Wrap" by the Evasions.

  3. Collatz conjecture - Wikipedia

    en.wikipedia.org/wiki/Collatz_conjecture

    For instance, the first counterexample must be odd because f(2n) = n, smaller than 2n; and it must be 3 mod 4 because f 2 (4n + 1) = 3n + 1, smaller than 4n + 1. For each starting value a which is not a counterexample to the Collatz conjecture, there is a k for which such an inequality holds, so checking the Collatz conjecture for one starting ...

  4. 1 + 2 + 3 + 4 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The partial sums of the series 1 + 2 + 3 + 4 + 5 + 6 + ⋯ are 1, 3, 6, 10, 15, etc.The nth partial sum is given by a simple formula: = = (+). This equation was known ...

  5. 1,2,4-Trichlorobenzene - Wikipedia

    en.wikipedia.org/wiki/1,2,4-Trichlorobenzene

    The LD50 (oral, rats) is 756 mg/kg. Animal studies have shown that 1,2,4-trichlorobenzene affects the liver and kidney, and is possibly a teratogen. There is no regulated occupational exposure limit for chemical exposure, but the National Institute for Occupational Safety and Health recommends no greater exposure than 5 ppm, over an 8-hour workday.

  6. 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 ...

  7. 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 ...

  8. 4-Phenyl-1,2,4-triazole-3,5-dione - Wikipedia

    en.wikipedia.org/wiki/4-Phenyl-1,2,4-triazole-3...

    4-Phenyl-1,2,4-triazoline-3,5-dione (PTAD) is an azodicarbonyl compound. PTAD is one of the strongest dienophiles and reacts rapidly with dienes in Diels-Alder reactions . [1] The most prominent use of PTAD was the first synthesis of prismane in 1973.

  9. 4 Common Rookie Workout Mistakes—And How to Fix Them - AOL

    www.aol.com/4-common-rookie-workout-mistakes...

    Biceps Curls. Mistake: You don’t twist your palms upwards at the top of each rep, which means “you’re not getting a maximum squeeze on your biceps,” Samuel says. The Fix: Start the ...