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  2. Atomic absorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Atomic_absorption_spectroscopy

    Atomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative measurement of chemical elements. AAS is based on the absorption of light by free metallic ions that have been atomized from a sample. An alternative technique is atomic emission spectroscopy (AES).

  3. Degree-of-difference - Wikipedia

    en.wikipedia.org/wiki/Degree-of-difference

    Degree of Difference Testing, which is also known as DOD is a method to determine an overall difference among test and control groups when product in question has exhibited variability that would have caused because of multiple factors such as the production time, use of multiple components, preparation or others.

  4. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    A formula for computing the trigonometric identities for the one-third angle exists, but it requires finding the zeroes of the cubic equation 4x 3 − 3x + d = 0, where is the value of the cosine function at the one-third angle and d is the known value of the cosine function at the full angle.

  5. EXCLUSIVE: Doritos brings back $1 million ‘Crash the Super ...

    www.aol.com/news/exclusive-doritos-brings-back-1...

    Doritos is officially reviving its “Crash the Super Bowl” contest, which asks fans to produce their own Super Bowl commercials for the chance to win $1 million.

  6. Doritos - Wikipedia

    en.wikipedia.org/wiki/Doritos

    In February 2011, Doritos Canada ran a competition to write the end of a commercial for two new flavors ("Onion Rings n' Ketchup" and "Blazin' Buffalo and Ranch"), and to vote for which of the two flavors would be taken off shelves when the contest ended. Onion Rings n' Ketchup received the most votes and remained on sale. [30]

  7. Associate degree - Wikipedia

    en.wikipedia.org/wiki/Associate_degree

    A survey in 2016 showed that most students believe associate degrees will help them to get onto bachelor's degree courses, but not (by themselves) in gaining a career; however only 30% of associate degree graduates gained places for further study, leading to accusations that the degree is "a waste of time and money" and calls for the government ...

  8. Finite difference - Wikipedia

    en.wikipedia.org/wiki/Finite_difference

    In an analogous way, one can obtain finite difference approximations to higher order derivatives and differential operators. For example, by using the above central difference formula for f ′(x + ⁠ h / 2 ⁠) and f ′(x − ⁠ h / 2 ⁠) and applying a central difference formula for the derivative of f ′ at x, we obtain the central difference approximation of the second derivative of f:

  9. Proofs of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/Proofs_of_trigonometric...

    Illustration of the sum formula. Draw a horizontal line (the x -axis); mark an origin O. Draw a line from O at an angle α {\displaystyle \alpha } above the horizontal line and a second line at an angle β {\displaystyle \beta } above that; the angle between the second line and the x -axis is α + β . {\displaystyle \alpha +\beta .}