1.

Find the nth term of an AP 1,-1, -3, -5....​

Answer»

ANSWER:

a = 1

DIFFERENCE = -1 - 1 = -2

an = a + (N - 1) × d

an = 1 + (n - 1) × -2

an = 1 -2N + 2

an = 3- 2n

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