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Correct option is B
take p=2,q=1 then the given equation becomes= a1+a2a1=8⇒a1+a1+da1=8⇒d=6a1 Now a6a21=a1+5da1+20d=a1+5×6a1a1+20×6a1=1+301+120=31121 n'th term in A.P=a+n-1dSimilar Questions
The sum of terms of an is The number of term which equals 159, is
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