3n+4,14-4n,4n-2. Solve it
Xn = a + d(n-1) Now look at 3n + 4 Xn = 4 + 3n let a = 4 let d = 3 Xm = 4 + 3 (m-1) where m = n+1 m = 1 to 5 4, 7 , 10 , 13 , 16 then 14 - 4 n again a = 14 d = -4 m = n+1 Xm = 14 - 4(m-1) etc
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