Jawab:
Deret Aritmetika
untuk n ganjil dan Ut = suku tengah
maka Ut = 1/2 (U1 + Un)
Penjelasan dengan langkah-langkah:
ut = 75
n = 51
Un = 175
Ut = 1/2 (U1 + Un)
75 = 1/2 (a + 175)
a + 175 = 150
a = - 25
Un = a + (n- 1) b
U51 = a + 50 b
175 = - 25 + 50b
50b = 200
b = 4
U10 = a + 9b = -25 + 9(4)
U10 = -25 + 36
U10 = 11
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawab:
Deret Aritmetika
untuk n ganjil dan Ut = suku tengah
maka Ut = 1/2 (U1 + Un)
Penjelasan dengan langkah-langkah:
ut = 75
n = 51
Un = 175
Ut = 1/2 (U1 + Un)
75 = 1/2 (a + 175)
a + 175 = 150
a = - 25
Un = a + (n- 1) b
U51 = a + 50 b
175 = - 25 + 50b
50b = 200
b = 4
U10 = a + 9b = -25 + 9(4)
U10 = -25 + 36
U10 = 11