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Q.

Write the first four terms of the A.P. when first term a and common difference d are given as follows:


a = -2, d = 0


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a

2,2,2,2

b

-2,-2,-2,-2

c

0,1,2,3

d

1,1,1,1 

answer is B.

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Detailed Solution

Given that,
a = -2, d = 0
We know,
a n =a+ n1 d  .
Here, a is the first term, n is the number of terms and d is a common difference.
Therefore,
  a 2 =2+ 21 0 a n = a 1 + n1 d a 2 =2   So, the second term of the A.P is -2.
a 3 =2+ 31 0 a 3 =2 a 3 =2   So, the third term of the A.P is -2.
a 4 =2+ 41 0 a 4 =2   So, the fourth term of the A.P is -2.
a 1 =2  , a 2 =2  , a 3 =2  , a 4 =2  .
Hence, the A.P. is -2,-2,-2,-2,…..
Therefore, option 2 is correct.
 
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