1
Question
Is 68 a term of the AP 7,10,13,...?
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Solution
Use formula of
nth term=a+(n-1) d
68=7+(n-1) 3
61/3+1=n
here we look n is fractional
but n can't be fractional so 68 is not a term of above series
nth term=a+(n-1) d
68=7+(n-1) 3
61/3+1=n
here we look n is fractional
but n can't be fractional so 68 is not a term of above series
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