Sagot :
Answer: r = 3
a1 = 8
a6 = 1944
n = 6
r = ?
an = a1 r^n - 1
1944 = 8 r^6 - 1
1944 = 8 r^5
1944/8 = 8 r^5/8
243 = r^5
3 = r
Answer: r = 3
a1 = 8
a6 = 1944
n = 6
r = ?
an = a1 r^n - 1
1944 = 8 r^6 - 1
1944 = 8 r^5
1944/8 = 8 r^5/8
243 = r^5
3 = r