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  2. Additional Mathematics - Wikipedia

    en.wikipedia.org/wiki/Additional_Mathematics

    Section B contains 4 questions where students are given the choice to answer 3 out of 4 of them. Section C contains 4 questions where students are only required to answer 2 out of 4 of the given questions. All Section C questions are based on the same chapters every year and are thus predictable.

  3. Category : Educational and instructional television channels

    en.wikipedia.org/wiki/Category:Educational_and...

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  4. List of United States over-the-air television networks

    en.wikipedia.org/wiki/List_of_United_States_over...

    Annenberg Channel – Originally known as Annenberg/CPB Channel and formerly operating as a national educational access network for public broadcasters and schools that broadcast Annenberg/CPB programs, Annenberg Channel was available on some cable and satellite providers; it now operates as an online streaming service that is offered for ...

  5. Free ad-supported streaming television - Wikipedia

    en.wikipedia.org/wiki/Free_ad-supported...

    As per Nielsen's monthly streaming ratings for the US market, called "The Gauge", three of the FAST services were in the Top 10 of all streaming services in 2023. In the September 2023 ratings, [18] Tubi, with 1.3% of viewing, ranked fifth among all streaming services, The Roku Channel, with 1.1% ranked seventh, and Pluto TV, with 0.8% ranked ...

  6. List of quiz channels - Wikipedia

    en.wikipedia.org/wiki/List_of_quiz_channels

    In Flanders the main TV channels already banned the games between 2008 and 2010, except vtm and 2BE who stopped in 2011. In Wallonia the games are still broadcast. The Belgian cabaret Neveneffecten had a TV-show Basta in January 2011 on channel Eén .

  7. Comparison of Q&A sites - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Q&A_sites

    The following is a list of websites that follow a question-and-answer format. The list contains only websites for which an article exists, dedicated either wholly or at least partly to the websites. For the humor "Q&A site" format first popularized by Forum 2000 and The Conversatron, see Q&A comedy website.

  8. Raising and lowering indices - Wikipedia

    en.wikipedia.org/wiki/Raising_and_lowering_indices

    It is common convention to use greek indices when writing expressions involving tensors in Minkowski space, while Latin indices are reserved for Euclidean space. Well-formulated expressions are constrained by the rules of Einstein summation: any index may appear at most twice and furthermore a raised index must contract with a lowered index ...

  9. nth root - Wikipedia

    en.wikipedia.org/wiki/Nth_root

    The four 4th roots of −1, none of which are real The three 3rd roots of −1, one of which is a negative real. An n th root of a number x, where n is a positive integer, is any of the n real or complex numbers r whose nth power is x: