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| 1. |
M times the mth term is equal to nth time the n term find (m +n)th term |
| Answer» M×(a + DM -d )=n×(a+dn-d)...=>am -DM=an-dn...=>m(a-d)=n(a-d)....=>m=n....=>A(m+n)=a + Md + nd -d...=> | |