Penjelasan dengan langkah-langkah:
bagian a
2, 6, 10, 14, ...
a = 2
b = 4
U40 = a + 39b
U40 = 2 + 39 (4)
U40 = 158
----- batas
bagian b
20, 15, 10, 5, 0, ...
a = 20
b = -5
U50 = a + 49b
U50 = 20 + 49 (-5)
U50 = -225
bagian c
0, 0,5, 1,0, 1,5, ...
a = 0
b = 0,5 = 1/2
U31 = a + 30b
U31 = 0 + 30 (1/2)
U31 = 15
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Penjelasan dengan langkah-langkah:
bagian a
2, 6, 10, 14, ...
a = 2
b = 4
U40 = a + 39b
U40 = 2 + 39 (4)
U40 = 158
----- batas
bagian b
20, 15, 10, 5, 0, ...
a = 20
b = -5
U50 = a + 49b
U50 = 20 + 49 (-5)
U50 = -225
----- batas
bagian c
0, 0,5, 1,0, 1,5, ...
a = 0
b = 0,5 = 1/2
U31 = a + 30b
U31 = 0 + 30 (1/2)
U31 = 15