Page 43 - DIGITAL BOOK MUHAMMAD AZWARDI NASUTION
P. 43
Suku tengah barisan geometri
Jika n ganjil maka U = U 1
t
2 (n+ ) 1
1 (n+ 1 ) 1
−
U = ar 2
t
1 (n+ 1− ) 2
U = ar 2
t
1 (n− ) 1
U = ar 2
t
U = a 2 r n− 1
t
U = ar . a n− 1
t
U = U . a n
t
