Math, asked by reshma12312, 7 months ago

If the sum of the first n terms of an AP is 4n -n², what is the first term (that is S.)? What
is the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th and nth term

Answers

Answered by Due1837

5

Step-by-step explanation:

d1 = 3. Hence, the first term is. Put n = 2, then. S2 = 4(2) – (2)2 = 8 – 4 = 4

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