Question

2. Write first four terms of the A.P. when the first term a and the common difference are given as follows: (i) a = 10, d = 10

Answer 1

Answer:  a = 10, d = 10

Let us consider, the Arithmetic Progression series be a1, a2, a3, a4, a5 …

a1 = a = 10

a2 = a1+d = 10+10 = 20

a3 = a2+d = 20+10 = 30

a4 = a3+d = 30+10 = 40

a5 = a4+d = 40+10 = 50

And so on…

Therefore, the A.P. series will be 10, 20, 30, 40, 50 …

And First four terms of this A.P. will be 10, 20, 30, and 40.

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Answer 2

a1 = a = 10

a2 = a+d =20

a3 = a+2d =30

a4 = a+3d =40

So,the terms in the AP are as 10, 20, 30, 40