find the indicated term of the given arithmetic sequence
-18, -7, 4, 15,...;75th term
2.2, 4.5, 6.8, 8.1,...; 100th term
13, 7, 1, -5,...;2017th term
3π, 5π, 7π, 9π,...;314th term
-18, -7, 4, 15,...;75th term
2.2, 4.5, 6.8, 8.1,...; 100th term
13, 7, 1, -5,...;2017th term
3π, 5π, 7π, 9π,...;314th term
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Answer for #1
a75=-18 + (75-1) 11
= -18 + (74) 11
= -18+814
=796
common difference = 11
a1= -7 - (-18) = 11
a2= 4 - (-7) = 11
a3= 15-4 = 11