Write first four terms of the A.P., when the first term `a` and the common difference 'd' are given as follows :
(i) a = 10, d =10 `" "` (ii) `a=-1, d=(1)/(2)`
(iii) a =4, d=-3 `" "` (iv) a = -2, d=0

Explanation

To find the first four terms of an Arithmetic Progression (A.P.) given the first term \( a \) and the common difference \( d \), we can use the following formulas:

1. The first term \( A_1 = a \)
2. The second term \( A_2 = A_1 + d \)
3. The third term \( A_3 = A_2 + d \)
4. The fourth term \( A_4 = A_3 + d \)

Now, let's solve the given parts step by step.
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