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Arithmetic and Geometric Progressions
The 4th term of an A.P. is 64 and the 54th term is -61, Show the 23rd term is 16½
The 4th term of an A.P. is 64 and the 54th term is -61, Show the 23rd term is 16½
Solution
Previous article: Prove that if unity is added to the sum of any number of terms of the A.P. 3, 5, 7, 9,…. The resulting sum is a perfect square.
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Next article: Find the 20th term of the A.P. 80, 75, 70, …. Calculate the number of terms required to make the sum equal to zero
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