c.300
d.305
e.270
Jawaban: a
Un = a + (n-1)b
U3 = a + 2b = 14
U7 = a + 6b = 34 –
-4b = -20
b = 5
a = 14 – 2b
c.300
d.305
e.270
Jawaban: a
Un = a + (n-1)b
U3 = a + 2b = 14
U7 = a + 6b = 34 –
-4b = -20
b = 5
a = 14 – 2b
Editor: Dian Effendi