suku ke 10= 1/8
bagi 2 aj trus dr suku ke 3 sampe ke 10
U3 = 16 = a + 2b
U6 = 2 = a + 5b
Eliminasi :
a + 5b = 2
a + 2b = 16
---------------- (-)
3b = -14
b = -14/3
Maka, dengan mensubstitusikan nilai b ke salah satu persamaan, didapatkan nilai a = 76/3
Maka,
U10 = a + 9b
= 76/3 + 9(-14/3)
U10 = -50/3
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suku ke 10= 1/8
bagi 2 aj trus dr suku ke 3 sampe ke 10
U3 = 16 = a + 2b
U6 = 2 = a + 5b
Eliminasi :
a + 5b = 2
a + 2b = 16
---------------- (-)
3b = -14
b = -14/3
Maka, dengan mensubstitusikan nilai b ke salah satu persamaan, didapatkan nilai a = 76/3
Maka,
U10 = a + 9b
= 76/3 + 9(-14/3)
U10 = -50/3