1.

12. Find the middle term of the A.P. 213, 205, 197, ..., 37.​

Answer»

The first term of the AP is 213. The last term of the AP is 37, we FIND the total number of terms in the AP using equations (1), (2) and (3). Hence, the 12th term of the AP is the middle term. Hence, the middle term of the AP is 125....



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