[積分] 一題積分和級數
1.
1/2 -1/2 t^2
∫ e dt=?
0
2.
1 1 1 1
-------- + ---------- + ---------- + ....+ -------- +......
1 + 1^2 1+ 2^2 1+3^2 1+n^2
此級數下界值為0.79?
此級數上界值為1.79?
3.
無限大 sin(nx)
級數 SUM -----------
n=1 n^2
在任何區間內恆為一致收斂?
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