If the common difference of an AP is 5 then the value of a20_a13
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1
Answer:
answer is 35
I hope it help u
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Answered by
1
Answer:
as we don't know the first term here so
a=unknown
d=5
a[20] = a+(20-1)5
= a+ 95
a[13] = a+(13-1)5
= a+ 60
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