12/02/15 21:35:55.30 iIl0K2pd0
数学
1
±√2 10/13 25/9 1 8/3
2
x^2/4 6 2an/(an+2)
3
7/10 14/15 119/360 24/(n+1)(n+2)(n+3) 3(k-1)(k-2)/(n+1)(n+2)(n+3) 1/4
4
(1/3,2/3,1/3) 1:-1:-2 (-1/√6,1/√6,2/√6) AD+AE -1/2 (√11)/8
5
7a^2/2-5a/3+1/4 7a/3 x^3/7 1/2≦a≦7/6 130a^3/27
略表記は察してくれ