Obtain the value of n for which sn= -144
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Step-by-step explanation:
Answer for this question is -22
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Answer:
Sn = -144
Which implies n/2(a+l) = -144.
Which implies n/2 = -144/a+l
Which implies n = 2(-144)/a+l
The value of n = 2(-144)
a+l
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