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Khan Academy
1,104,016 followers -
A free world-class education for anyone anywhere
A free world-class education for anyone anywhere

1,104,016 followers
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Intuition for why independence matters for variance of sum
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Variance of the sum or difference of independent random variables
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Finding the area between two loops of the same polar curve using a graphing calculator (TI-84).
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Calculus based justification for an inflection point
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Finding the rate of change of an angle that a falling ladder forms with the ground.
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Using a definite integral to find the area between curves.
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Limits from graphs
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Calculating the area between curves
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