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prove-that-I-0-sin-pix-sin-2pix-sin-3pix-x-3-pi-3-




Question Number 217761 by mnjuly1970 last updated on 20/Mar/25
            prove that :       I=∫_0 ^( ∞) ((sin(πx)sin(2πx)sin(3πx))/x^3 ) = π^3
provethat:I=0sin(πx)sin(2πx)sin(3πx)x3=π3

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