So. tired. here is. blog. 13 -1.
formulas:
Arithmetic = tn = t1+(n-1)d
Geometric = tn = t1 x r^n-1
ex. find first 3 terms for tn = 201n + 3
t1 = 201(1) +3
201 + 3 = 204
t2 = 201(2) +3
402 + 3 = 405
t3 = 201(3) +3
603 + 3 = 606
ex. find formula for n^m term :3,7,11,15 (Arithmetic)
tn = t1 + (n-1)d
tn = 3 + (n-1)(4)
tn = 3 + 4n - 4
tn = 4n-1
*insert witty comment*
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