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Find the first term of the arithmetic sequence in which t22=1008 and d= -8

Find the first term of the arithmetic sequence in which t22=1008 and d= -8
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4 votes
Find the first term of the arithmetic sequence in which t22=1008 and d= -8

User Lily Ballard
by
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2 Answers

3 votes
you misunderstood lol
Find the first term of the arithmetic sequence in which t22=1008 and d= -8-example-1
User Hiroga Katageri
by
8.1k points
6 votes
tn = nth term
t22 = 22nd term
d = common difference
d = -8
n = number of terms
n = 22
.
tn = t1 + (n - 1)d
t22 = t1 + (n - 1)d
1008 = t1 + (22 - 1)-8
1008 = t1 + (21)-8
1008 = t1 + 168
1008 - 168 = t1
840 = t1
User Brian Yarger
by
8.0k points
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