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In trigonometry, the law of cotangents is a relationship among the lengths of the sides of a triangle and the cotangents of the halves of the three angles. [1] [2]Just as three quantities whose equality is expressed by the law of sines are equal to the diameter of the circumscribed circle of the triangle (or to its reciprocal, depending on how the law is expressed), so also the law of ...
Mathematics Teacher: Learning and Teaching PK-12. According to the NCTM, this journal "reflects the current practices of mathematics education, as well as maintaining a knowledge base of practice and policy in looking at the future of the field. Content is aimed at preschool to 12th grade with peer-reviewed and invited articles."
Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [4] The organization produces short video lessons. [5] Its website also includes supplementary practice exercises and materials for educators.
Microsoft Math 1.0: Part of Microsoft Student 2006; Microsoft Math 2.0: Part of Microsoft Student 2007; Microsoft Math 3.0: Standalone commercial product that requires product activation; includes calculus support, digital ink recognition features and a special display mode for video projectors
National Honor Roll: Awarded to the top 10% of participants in each grade category. Honorable Mention: Awarded to students who score in the top 50% of participants in their grade category. [20] [18] School teams can earn the following award: Team Achievement: The top 10% of teams in each grade. [6] [21]
Signs of trigonometric functions in each quadrant. All Students Take Calculus is a mnemonic for the sign of each trigonometric functions in each quadrant of the plane. The letters ASTC signify which of the trigonometric functions are positive, starting in the top right 1st quadrant and moving counterclockwise through quadrants 2 to 4.
Desmos was founded by Eli Luberoff, a math and physics double major from Yale University, [3] and was launched as a startup at TechCrunch's Disrupt New York conference in 2011. [4] As of September 2012 [update] , it had received around 1 million US dollars of funding from Kapor Capital , Learn Capital, Kindler Capital, Elm Street Ventures and ...
In the context of the U.S. government, the Federal Acquisition Regulation (FAR) has defined "COTS" as a formal term for commercial items, including services, available in the commercial marketplace that can be bought and used under government contract. [1] For example, Microsoft is a COTS software provider. Goods and construction materials may ...