. ?
819745
3676356
1958607
1002299
7352712
3917214
26457066
32612238
2448901.3584
9099041.601
12509641.1763
86701363251
24489013584
9099041601
125096411763
I=∫
0
π
1−2rcosθ+r
2
dθ
,0≤r<1 by complex variabe
3. Obtain the Fourier cosine series expansion of f(x) = x * sin x in (0,π) and hence, find the value of 1 + 2/1.3 - 2/3.5 + 2/5.7 ...
743216
3720824
2538858
1392025
7441648
5077716
30116444
36289776
3003443
2850415
2570424
2491606.9548
10319258.6999
1...
x x 1/2x