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comment How to prove $\int_0^a f(x)\,dx=\int_0^a f(a-x)\,dx$
Hhhh great thanks
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17
accepted How to prove $\int_0^a f(x)\,dx=\int_0^a f(a-x)\,dx$
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awarded  Supporter
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asked How to prove $\int_0^a f(x)\,dx=\int_0^a f(a-x)\,dx$