Question

How many terms are in the ap 6, 3,0, - 3,
............. -36

Answer 1

Answer:

=> 15

Step-by-step explanation:

Formula to be used :

=> T = a+(n-1)d

where T= the term

a = initial term

n = number of term

d = common difference

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Given:-

T = -36

a = 6

d = 3-6 = -3

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So by formula

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=> -36 = 6 +(n-1)(-3)

=> 3(n-1) = 6+36

=> (n-1) = 42/3 = 14

=> n = 14 + 1 =15

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