6. (15 %)Let f(t)-31-t 0

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6. (15 %)Let f(t)-31-t 0<t 1, 0 otherwise Find the Fourier transform of FIfl(x) and the deduce that osin(a) /2) π doo- by us

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stis nothing but thengulos ple e dt-Jte tetir say t and d ot then substituting and solving co ewing US CAY 2衫 db RT But we need, %) dw stnt Hence proved.

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