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Whether you’re a student, teacher, homeschooler, principal, adult returning to the classroom after 20 years, or a friendly alien trying to get a leg up in earthly biology — Khan Academy’s learning library is available to you, for free.
– Learn anything, for free: Thousands of interactive exercises, videos, and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics, and much, much more.
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Learn using videos, interactive exercises, and in-depth articles in math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, linear algebra) science (biology, chemistry, physics), economics, humanities (art history, civics, finance), and more!
(For our Indian learners, we have aligned math and science content in our app to NCERT/CBSE curriculum. Study more effectively for your 6-to-12-grade math classes with our quizzes and tests. You’ll also build a strong foundation for your boards, CAT, GMAT, IIT-JEE, and other exams.)
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