Integration of a Symmetric Function with a Linear Weight

Rarely Tested

Integration of a Symmetric Function with a Linear Weight

If:

$$f(a-x)=f(x)$$

then:

$$\int_0^axf(x)\,dx=\frac{a}{2}\int_0^af(x)\,dx$$

Usage

- Very useful for definite integrals involving $$x$$ multiplied by a symmetric function.

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