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Backpack TV | Education video library focused on math, science, and other academic subjects.
描述: Backpack TV is an education video library focused on math, science, and other academic subjects. Featuring videos from Khan Academy, PatrickJMT, Yay Math, and more excellent schools and teachers.
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Check your calculus homework! Enter your function to get your calculus derivative or integral with each step explained, automatically and fast.
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