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The Integral
CHAPTER 4
Fig. 4.13 113
x = a and x = b in Fig. 4.14. That area is
b b
g(x) dx =− f(x) dx.
a a
Fig. 4.14
In total, the aggregate shaded area exhibited in Fig. 4.15, over the entire interval
[a, c],is
b c
− f(x) dx + f(x) dx.
a b
