Tentukan dua suku berikutnya dari barisan berikut! a. 20,19,16,11,4,... b 2,4,7,12,19,30,... c. 21,18,15,12,... d. 3,5,8,13,20,... Tolong Caranya Lengkap
AndinaTasya
A. (20-1) = 19 , (19-3) = 16, (16-5)= 11, (11-7) = 4, (4-9) = -5, (-5-11) -16 b. (2+2) = 4, (4+3) = 7, (7+5) = 12, (12+7) = 19, (19+11) =30, (30+13) = 43, (43+17) = 60 c. (21+(-3)) = 18, seterusnya dikurangi 3 => 9, 6 d. sm seperti yang b => 31, 48
b. (2+2) = 4, (4+3) = 7, (7+5) = 12, (12+7) = 19, (19+11) =30, (30+13) = 43, (43+17) = 60
c. (21+(-3)) = 18, seterusnya dikurangi 3 => 9, 6
d. sm seperti yang b => 31, 48
20 -1= 19 -3= 16 -5= 11 -7= 4 -9= -5 -11= -16
b. bil.prima
2 +2= 4 +3= 7 +5= 12 +7= 19 +11= 30 +13= 43 +17= 60
c. beda nya 3
21 -3= 18 -3= 15 -3= 12 -3= 9 -3= 6
d. bil.prima
3 +2= 5 +3= 8 +5= 13 +7= 20 +11= 31 +13=44