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10 cards from this deck
Sequence with constant difference between consecutive terms
ddd
d=T2−T1d = T_2 - T_1d=T2−T1 (later term minus earlier term)
General term or nth term of a sequence
Tn=a+(n−1)dT_n = a + (n-1)dTn=a+(n−1)d where aaa = first term, ddd = common diff
Increases
Decreases
Straight line
Formula (with nnn) to calculate any term in the pattern
Positive integers only
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