Question

Find the 15 th term of an AP: 13, 8, 3, -2,...

Answer 1

Step-by-step explanation:

The A.P is 13, 8, 3, -2,...

Here a=13 , d=t2-t1=8-13=-5 , t15=?

Therefore, tn = a + (n-1) d

t15 = 13 + (15-1) -5

t15 = 13 + 14 × -5

t15 = 13 - 70

t15 = -57

Thus the 15th terms of an A.P is -57.

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Answer 2

Step-by-step explanation:

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