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b(beda)= 10-5 = 5
rumus suku ken ;
un = a + (n-1) b
= 5 + (n-1) 5
= 5 + 5n - 5
un = 5n
beda (b) = U2 - U1
= 10 - 5
= 5
Un = a + (n - 1).b
= 5 + (n - 1).5
= 5 + 5n - 5
= 5n