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Product Rule |
(u(x) v(x))' =
u'(x) v(x) + u(x)
v'(x) |
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((first)(second))' = (derivative of first)(second) +
(first)(derivative of second) |
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e.g., (x ln(x))' = (1)(ln(x) +
(x)(1 / x) |
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Quotient Rule |
(u(x) / v(x))' =
(u'(x) v(x) - u(x)
v'(x)) / v2(x) |
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(top / bottom)' = ((derivative of top)(bottom) -
(top)(derivative of bottom)) / (bottom)2 |
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e.g., (x / ex)' = ((1)(ex) - (x)(ex)) / (ex)2 |
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Chain Rule |
(u(v(x)))' =
u'(v(x)) v'(x) |
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(outer(inner(x)))' = (derivative of outer with inner plugged
in)(derivative of inner) |
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e.g., (cos(ln(x)))' =
-sin(ln(x)) (1 / x) |