A.P

Algebra Level 4

The sum of the first m m th terms of an arithmetic progression S m = n S_m = n and S n = m S_n= m , where m > n m> n .

Find S m − n S_{m-n} in terms of m m and n n .

( m − n ) ( m + 2 n ) n \frac{(m-n)(m+2n)}n None of these choices ( m − n ) ( m + 2 n ) m \frac{(m-n)(m+2n)}m ( m + n ) ( 2 m + n ) m \frac{(m+n)(2m+n)}m ( m − n ) ( 2 m + n ) n \frac{(m-n)(2m+n)}n

Navneet Bhole by Navneet Bhole , 38, India

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