is 217 a term of the AP ? 27,22,17,12...............?
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no 217 is not term of an ap
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a=27 d=-5
217=27+(n-1)d
217=27+(n-1)-5
217=27-5n+5
217-32= -5n
175=-5n
n=175/-5
n=-35
Since n is not a natural no. So 217 is not a term of the given A. P
217=27+(n-1)d
217=27+(n-1)-5
217=27-5n+5
217-32= -5n
175=-5n
n=175/-5
n=-35
Since n is not a natural no. So 217 is not a term of the given A. P
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