Question

Hitunglah jumlah 10 suku pertama dari deret 4 + 1 + 1/4 + 1/16

Answer 1

R=1/4
a= 4
S10=a(r10-1)/(r-1)
S10= 4(1/1048576-1)/(1/4-1)
S10= 4(-1048575/1048576)/-3/4
S10= -4194300/1048576*-4/3
S10= 16777200/3145278
S10= 5, 35

Answer 2

A = 4
r = 1/4

S10 = a(r^n - 1)/r - 1
S10 = 4(1/4^10 - 1)/ 1/4 - 1
S10 = 4(1/1048576 - 1)/-3/4
S10 = -4194304/1048576 x -4/3
S10 = 5,35