1.

Let a_(1) , a_(2) , a_(3) , ..... be terms of an A.P. If (a_(1)+a_(2)+.....+a_(p))/(a_(1)+a_(2)+...... +a_(q))=(p^(2))/(q^(2)) (p ne q) then find (a_(6))/(a_(21)) .

Answer»


ANSWER :`(11)/(41)`


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