barisan aritmetika 1/2 , 2/5 , 3/10 U10 = U45 =
Matematika
atp3517
Pertanyaan
barisan aritmetika
1/2 , 2/5 , 3/10
U10 =
U45 =
1/2 , 2/5 , 3/10
U10 =
U45 =
1 Jawaban
-
1. Jawaban Machzen
1/2 = 5/10
2/5= 4/10
3/10 = 3/10
Beda = -1/10
U10 :
= a + 9b
= 5/10 + 9 x -1/10
= 5/10 + -9/10
= -4/10
= -2/5
U45 :
= a + 44b
= 5/10 + 44 x -1/10
= 5/10 + -44/10
= -39/10