find the sumne off AP 2,7,12.......10th term
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Answer:
find the sumne off AP 2,7,12.......10th term
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0
Answer:
Sn= 2,7,12.....10th term is
Sn=245.
Step-by-step explanation:
{first term} a=2
{common difference} d = a2-a1=7-2
=5
n=10th term.
Sn=n/2[2a+{n-1}d]
s10=10/2[2{2}+{10-1}5]
=5[4+45]
= 5{49}.
=245.
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