Penjelasan dengan langkah-langkah:
diket:suku pertama (a)=4 beda(b)=U2-U1=5-4=1
Un=a+(n-1)b
=4+(n-1)1
=4+1n+1
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Penjelasan dengan langkah-langkah:
diket:suku pertama (a)=4 beda(b)=U2-U1=5-4=1
Un=a+(n-1)b
=4+(n-1)1
=4+1n+1