if an = 6 in an ap of 13 terms then the value of s13 is
a) 42
b) 24
c) 89
d) 78
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Answered by
2
Answer:
correct option (c) 89
Step-by-step explanation:
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Answered by
0
Answer:
Ans = 78 . you are written rong questions .if a 7=6 in an ap ..
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