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  2. Clearing denominators - Wikipedia

    en.wikipedia.org/wiki/Clearing_denominators

    The simplified equation is not entirely equivalent to the original. For when we substitute y = 0 and z = 0 in the last equation, both sides simplify to 0, so we get 0 = 0, a mathematical truth. But the same substitution applied to the original equation results in x/6 + 0/0 = 1, which is mathematically meaningless.

  3. 54 (number) - Wikipedia

    en.wikipedia.org/wiki/54_(number)

    Using regular numbers simplifies multiplication and division in base 60 because dividing a by b can be done by multiplying a by b 's reciprocal when b is a regular number. [11] [12] For instance, division by 54 can be achieved in the Assyro-Babylonian system by multiplying by 4000 because 60 3 ÷ 54 = 60 3 × (1/54) = 4000. In base 60, 4000 can ...

  4. Simplification - Wikipedia

    en.wikipedia.org/wiki/Simplification

    Simplification is the process of replacing a mathematical expression by an equivalent one that is simpler (usually shorter), according to a well-founded ordering. Examples include:

  5. Pell's equation - Wikipedia

    en.wikipedia.org/wiki/Pell's_equation

    Dividing throughout by 64 ("8" for and ) gave the triple (24, 5/2, 1), which when composed with itself gave the desired integer solution (1151, 120, 1). Brahmagupta solved many Pell's equations with this method, proving that it gives solutions starting from an integer solution of x 2 − N y 2 = k {\displaystyle x^{2}-Ny^{2}=k} for k = ±1, ±2 ...

  6. Best CD rates today: Shift your idle savings into high gear with guaranteed yields of up to 4.60% — Jan. 15, 2025 Lock in today's best rates in decades on certificates of deposits on a range of ...

  7. List of Machin stamps - Wikipedia

    en.wikipedia.org/wiki/List_of_Machin_stamps

    £3.15 aqua green: 24 Mar 2015 ... £1.50 blue-black & lilac: Sep 2 1986 £1.60 blue-black & buff: Sep 15 1987 £2 purple-brown and pale green: Feb 2 1977

  8. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    In the 24-hour time notation, the day begins at midnight, 00:00 or 0:00, and the last minute of the day begins at 23:59. Where convenient, the notation 24:00 may also be used to refer to midnight at the end of a given date [3] — that is, 24:00 of one day is the same time as 00:00 of the following day.

  9. Bluetooth - Wikipedia

    en.wikipedia.org/wiki/Bluetooth

    The IEEE standardized Bluetooth as IEEE 802.15.1 but no longer ... Bluetooth protocols simplify the discovery and setup ... 60 m 5 5.0 2016 50 Mb/s 2 Mb/s 240 m ...