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If the sum of first p terms an ap is equal to q m same as its n how find in arithmetic progression buchan musur1997 a 2 bp comman difference 9 temsthen show that ifof 30 whose th term 1/2n zero next 3psquare 4p and gp formula proof solved examples 20 ap=2 7 12 using brainly ex 5 3 11 4n n2 one third question 10 sn given by sn=2n^2 then 50 210 last 15