Diketahui deret 5 10 20 40 .... jumlah 9 suku pertama deret tersebut adalah a. 252 b.334 c.428 d.649
Jawaban:
DerGeo =
a = 5
r = 2
S9 = a(rⁿ - 1)/(r-1)
S9 = 5(2^9 - 1)
180 Days of Practice for Fifth Grade (Set of 3), 5th Grade Workbooks for Kids Ages 9-11, Inc
180 Days of Practice for Fifth Grade (Set of 3), 5th Grade Workbooks for Kids Ages 9-11, Inc
Jawaban:
DerGeo =
a = 5
r = 2
S9 = a(rⁿ - 1)/(r-1)
S9 = 5(2^9 - 1)