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sudharsan
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#✍ எக்ஸாம் குறிப்பு
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![✍ எக்ஸாம் குறிப்பு - Finite Series 1+2+3+...+1=n(n+1) @sudharsan] 2+4+6+...+2n=n(n+1) 1+3+5+_+(2n-1)=n n(2k+n-1) k+(k+1)+(k+2)+...+(k+1-1)= n(n+1)(2n+1) 1- +2- +3- +...+1- = -1) ="(4n2 +.. + (211-1)2 12 + 32 + 52 "(1+1)] 13 + 23 +33 +...+ 113 (2n-1)' =n? (2n? -1) 13 +33 +53 + 1+2 +..= 2 @ 2! Finite Series 1+2+3+...+1=n(n+1) @sudharsan] 2+4+6+...+2n=n(n+1) 1+3+5+_+(2n-1)=n n(2k+n-1) k+(k+1)+(k+2)+...+(k+1-1)= n(n+1)(2n+1) 1- +2- +3- +...+1- = -1) ="(4n2 +.. + (211-1)2 12 + 32 + 52 "(1+1)] 13 + 23 +33 +...+ 113 (2n-1)' =n? (2n? -1) 13 +33 +53 + 1+2 +..= 2 @ 2! - ShareChat](https://cdn4.sharechat.com/bd5223f_s1w/compressed_gm_40_img_688329_38b0d8d9_1769010686553_sc.jpg?tenant=sc&referrer=pwa-sharechat-service&f=553_sc.jpg "✍ எக்ஸாம் குறிப்பு - Finite Series 1+2+3+...+1=n(n+1) @sudharsan] 2+4+6+...+2n=n(n+1) 1+3+5+_+(2n-1)=n n(2k+n-1) k+(k+1)+(k+2)+...+(k+1-1)= n(n+1)(2n+1) 1- +2- +3- +...+1- = -1) =\"(4n2 +.. + (211-1)2 12 + 32 + 52 \"(1+1)] 13 + 23 +33 +...+ 113 (2n-1)' =n? (2n? -1) 13 +33 +53 + 1+2 +..= 2 @ 2! Finite Series 1+2+3+...+1=n(n+1) @sudharsan] 2+4+6+...+2n=n(n+1) 1+3+5+_+(2n-1)=n n(2k+n-1) k+(k+1)+(k+2)+...+(k+1-1)= n(n+1)(2n+1) 1- +2- +3- +...+1- = -1) =\"(4n2 +.. + (211-1)2 12 + 32 + 52 \"(1+1)] 13 + 23 +33 +...+ 113 (2n-1)' =n? (2n? -1) 13 +33 +53 + 1+2 +..= 2 @ 2! - ShareChat")