Biology Reference
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228
DERIVATIVE
If y is a function of x, we usually write:
y = y (x).
If y is plotted against x, we can think about the function as a curve. The
slope of the curve at any given value of x is defined as:
It can be easily verified that:
dx/dx = 1,
dx 2 /dx = 2x,
dx 3 /dx = 3x 2 ,
dx n /dx = nx n-1 .
by power series expansion, e,g,
and
higher order terms in
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