sum of n terms of the AP 5 ,2,-1,-4... is
a)n(3n-13)
b)n(13-3n)
c)both
d)n/2(13-3n)
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sum of n terms of the AP 5 ,2,-1,-4... is
a)n(3n-13)
b)n(13-3n)
c)both
d)n/2(13-3n)
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Answer:
no a is the answer
Step-by-step explanation:
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