U3=19 U7=43 . Cari =a,b,n,dan Un
Matematika
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Pertanyaan
U3=19 U7=43 . Cari =a,b,n,dan Un
1 Jawaban
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1. Jawaban radianlingkaran
U3 = a + 2b = 19
U7 = a + 6b = 43
-------------------------- (-)
4b = 24
b = 6
a = 7
Un = a + (n-1)b
= 7 + (n-1)6
= 6n + 1