Question

Which of the following is the formula of nth term of an AP whose 1st term is 'A' and common difference is 'D'?

1️⃣ A + D
2️⃣ A + (n + 1)d
3️⃣ A + (n - 1)D
4️⃣ A + nD​

Answer 1

Answer:

b option is correct I am sure

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

Which of the following is the formula of nth term of an AP whose 1st term is 'A' and common difference is 'D'?

1. A + D

2. A + (n + 1)D

3. A + (n - 1)D

4. A + nD.

EVALUATION

Here it is given that for the given arithmetic progression

First term = A

Common Difference = D

So the n th term of the AP

$\sf{ = t_n }$

= A + (n - 1)D

FINAL ANSWER

Hence the correct option is 3. A + (n - 1)D

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