We offer free personalized SAT test prep in partnership with the test developer, the College Board. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.Ībout Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. Created by Sal Khan.ĪP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. What is the minimum possible value of x^2+y^2 given that their product has to be fixed at xy = -16.
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