Answer
A. 3
B. 78
C. 0
D. 180
Work Step by Step
A. For i = 1,
0+(-1) = -1.
For i = 2,
1+0 = 1.
For i = 3,
2+1 = 3.
Hence,
(-1)+1+3 = 3.
B. For i = 0,
0 + 2 + 4 = 6.
For i = 1,
3 + 5 + 7 = 15.
For i = 2,
6 + 8 + 10 = 24.
For i = 3,
9 + 11 + 13 = 33.
Hence,
6+15+24+33 = 78.
C. For i = 1,
0 /times 1 /times 2 = 0.
For i = 2,
0 /times 1 /times 2 = 0.
For i = 3,
0 /times 1 /times 2 = 0.
Hence,
0+0+0=0.
D. For i = 0,
0+0+0 = 0
For i = 1,
0 + 1 + 8 + 27 = 36.
For i = 2,
0 + 4 + 32 + 108 = 144.
Hence,
0+36+144 = 180.
