Jawabanmu

2014-02-02T14:28:35+07:00
U₃ = a + 2b = 8
U₆ = a + 5b = 17
pakai eliminasi,
nilai b =
3b = 9
b = 3
umtuk mencari nilai a =
a + 2(3) = 8
a = 2
maka, U₁₃ = a + 12b
= 2 + 12(3)
= 38
2014-02-02T15:40:04+07:00
U3 =8
U6=17

a+2b=8
a+5b=17 
   -3b=-9
      b=3
a+2b=8
a+2*3=8
a=2
U13= a+12b
       = 2+ 12*3
       = 2+36
       = 38