Find the sum of the first 22 terms of the AP : 8,3,-2, . . . .

Explanation

To find the sum of the first 22 terms of the arithmetic progression (AP) given as 8, 3, -2, ..., we can follow these steps:

### Step 1: Identify the first term (a) and the common difference (d)
The first term \( a \) of the AP is the first number in the sequence, which is:
\[ a = 8 \]

To find the common difference \( d \), we subtract the first term from the second term:
\[ d = 3 - 8 = -5 \]
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