## Answers

f(x) = 3x² + 2x -1 call f(1) = ао + & an Cos (na) + { bn Sinntix na n ao = Į (3 x ² + 2x) dx 292 ao = 1 (x3 + x don 1 an= f (3 0² + 2x) coln Tx) dx x + 2) Sin nix da an= (3 + 2x) sinntix ИТТ n73 an I (6x+2) Sinntry da NT an - 12 Cos (MT) Ais n22 80 do =1, an 12 COST) N²² sha

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