Materi : Barisan dan Geometri
Pola barisan geometri
8, -4, 2, -1, ½, -¼, ...
Suku Pertama = 8, Rasio = -½
Maka langsung saja
Jumlah 6 Suku Pertama
Sn = a( 1 - rⁿ )/( 1 - r )
S6 = 8( 1 - [-½]⁶ )/( 1 - [-½] )
S6 = 8( 1 - 1/64 ) ÷ 3/2
S6 = 8( 63/64 ) × ⅔
S6 = 16/3( 63/64 )
S6 = ⅓( 63/4 )
S6 = 21/4 atau 5¼ atau 5,25 atau 525%
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Materi : Barisan dan Geometri
Pola barisan geometri
8, -4, 2, -1, ½, -¼, ...
Suku Pertama = 8, Rasio = -½
Maka langsung saja
Jumlah 6 Suku Pertama
Sn = a( 1 - rⁿ )/( 1 - r )
S6 = 8( 1 - [-½]⁶ )/( 1 - [-½] )
S6 = 8( 1 - 1/64 ) ÷ 3/2
S6 = 8( 63/64 ) × ⅔
S6 = 16/3( 63/64 )
S6 = ⅓( 63/4 )
S6 = 21/4 atau 5¼ atau 5,25 atau 525%
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]