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  2. Extraneous and missing solutions - Wikipedia

    en.wikipedia.org/wiki/Extraneous_and_missing...

    Therefore, the solution = is extraneous and not valid, and the original equation has no solution. For this specific example, it could be recognized that (for the value x = − 2 {\displaystyle x=-2} ), the operation of multiplying by ( x − 2 ) ( x + 2 ) {\displaystyle (x-2)(x+2)} would be a multiplication by zero.

  3. List of cognitive biases - Wikipedia

    en.wikipedia.org/wiki/List_of_cognitive_biases

    List-length effect: A smaller percentage of items are remembered in a longer list, but as the length of the list increases, the absolute number of items remembered increases as well. [163] Memory inhibition: Being shown some items from a list makes it harder to retrieve the other items (e.g., Slamecka, 1968). Misinformation effect

  4. List of paradoxes - Wikipedia

    en.wikipedia.org/wiki/List_of_paradoxes

    These paradoxes may be due to fallacious reasoning , or an unintuitive solution . The term paradox is often used to describe a counter-intuitive result. However, some of these paradoxes qualify to fit into the mainstream viewpoint of a paradox, which is a self-contradictory result gained even while properly applying accepted ways of reasoning .

  5. List of unsolved problems in computer science - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    NC = P problem The P vs NP problem is a major unsolved question in computer science that asks whether every problem whose solution can be quickly verified by a computer (NP) can also be quickly solved by a computer (P). This question has profound implications for fields such as cryptography, algorithm design, and computational theory.

  6. Talk:Extraneous and missing solutions - Wikipedia

    en.wikipedia.org/wiki/Talk:Extraneous_and...

    where x = 7 is the solution to the problem, and x = -4 is an extraneous solution because it is not pertinent to the problem. Tparameter 17:46, 19 January 2008 (UTC) No, this is not a sutiable example of an extraneous solution. Since x = -4 can satisfly the equation x 2 - 3x + 5 = 0, only does not satisfly the domain that sets manually.

  7. What Is the Emergency Contact Trend? Here's Why People Are ...

    www.aol.com/emergency-contact-trend-heres-why...

    In real life, your emergency contact should be a person who can step up when the unexpected happens — someone reliable, capable and ready to take action. The emergency contact TikTok trend ...

  8. Internal validity - Wikipedia

    en.wikipedia.org/wiki/Internal_validity

    For example, sex, weight, hair, eye, and skin color, personality, mental capabilities, and physical abilities, but also attitudes like motivation or willingness to participate. During the selection step of the research study, if an unequal number of test subjects have similar subject-related variables there is a threat to the internal validity.

  9. Limit situation - Wikipedia

    en.wikipedia.org/wiki/Limit_Situation

    James G. Hart wrote that encounters with limit situations unsettle individuals, break them out of their inauthentic identifications, remove them from the social bond, and force them to come alive and find new ways of communicating. [3]