consider the Arithmetic sequence 171,167,163....
a) is 0 a term of this sequence why?
b) how many positive terms are in this sequence?
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Answer:
an = 0
a =171
d = 167-171 = -4
an = a+(n-1)d
0 = 171+(n-1)(-4)
-171 = (n-1)(-4)
171/4 = (n-1)
no, zero is not the term of the sequence .
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