Maths Arithmetic Progressions Medium
If the sum of the first n terms of an AP is 4n - n², what is the first term (that is S₁)? What is the sum of…
If the sum of the first terms of an AP is , what is the first term (that is )? What is the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th and the th terms.
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