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a1 = 13
d = -4
can you clarify step by step how to figure it out?
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a1 = 13
d = - 4
n = 41
formula for nth term , an = a + (n - 1)d
41 thterm = 13 + (41 - 1)( - 4)
= 13 + 40( - 4)
= 13 - 160
= - 147
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