Fouerier PVK | Desmos

Expression 3: "a" Subscript, 0 , Baseline equals 0

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Expression 4: "a" left parenthesis, "n" , right parenthesis equals 0

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Expression 5: "b" left parenthesis, "n" , right parenthesis equals StartFraction, negative 2 times left parenthesis, negative 1 , right parenthesis Superscript, "n" , Baseline Over "n" , EndFraction

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Expression 6: "f" left parenthesis, "x" , right parenthesis equals StartFraction, "a" Subscript, 0 , Baseline Over 2 , EndFraction plus Start sum from "n" equals 1 to "N" , end sum, left parenthesis, "a" left parenthesis, "n" , right parenthesis cos left parenthesis, StartFraction, 2 pi Over "T" , EndFraction "n" "x" , right parenthesis plus "b" left parenthesis, "n" , right parenthesis sin left parenthesis, StartFraction, 2 pi Over "T" , EndFraction "n" "x" , right parenthesis , right parenthesis

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