π2 COSNX αν -π <<παnd Σ=1,2 n=1 μη=2 3 η 2 η ο If x2 . + 4 Σ-(-1)* then show that Ena (2n-1)2 1 =1 8.
Posted: Tue May 10, 2022 11:16 am
π2 COSNX αν -π <<παnd Σ=1,2 n=1 μη=2 3 η 2 η ο If x2 . + 4 Σ-(-1)* then show that Ena (2n-1)2 1 =1 8.