Area between a curve and the x-axis | AP Calculus AB | Khan Academy



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Based on the fundamental theorem of calculus, we can use antiderivatives to compute integrals. Created by Sal Khan.

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AP 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. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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31 Comments

  1. Im wearing earbuds right now and it's so uncomfortable how I can hear every splosh of your saliva and every sniff of your nose. It is so distracting.

  2. its cool that when you have f1(x)=ax/|x| and you have variable A for an equation, the y axes will be flipped where y : 1 => y : -1 and y : -1 => y : 1 IF the point is below x : 0

  3. The sign for Integration comes from the LATIN LONG 'S' which essentially is short for Summa which in turn is short for SUMMATION which is what Integral Calculus is all about.

    Leibnitz was the first person to use that symbol!!

    The letters dx stand for INFINITESIMALLY SMALL particles of the variable x in this case

    Hope this helps.

  4. Khan: 0:1 *&^%^&*&^^%^&*(*&^% 5:37
    me: ammmm !!!????
    khan : 5:38 sixty three over three, and three goes into sixty three exactly 21
    me : finally some thing i know

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