If f(x) is an even function and a is a positive real number, then \(\mathop \smallint \limits_{ - a}^a f\left( x \right)dx\) equals

\(2\mathop \smallint \limits_0^a f\left( x \right)dx\)

If f(x) is an even function and a is a positive real number, then \(\m

1.	If f(x) is an even function and a is a positive real number, then \(\mathop \smallint \limits_{ - a}^a f\left( x \right)dx\) equals
A.	0
B.	a
C.	2a
D.	\(2\mathop \smallint \limits_0^a f\left( x \right)dx\)
Answer» E.

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If f(x) is an even function and a is a positive real number, then \(\mathop \smallint \limits_{ - a}^a f\left( x \right)dx\) equals

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