Jawapan

2016-06-01T20:52:57+08:00
-18 per x=36 per 18 18 per x=2 18=2x 9=x -hsil tmbah 10 sbutan prtma Sn=a(r^n -1) per r-1 a=9, r=2 S10=9(2^10 -1) per 2-1 S10=9(1023) per 1 S10= 9207
2016-06-03T17:26:21+08:00
R = 36 / 18
  = 2

S10 = 9(2)^10 - 1 / 1
       = 9216 - 1
       = 9215