# Arithmetic Progressions

#### Answer:

In the given problem, we need to write the first term (*a*) and the common difference (*d*) of the given A.P

(i) −5, −1, 3, 7 …

Here, first term of the given A.P is (*a*) = −5

Now, we will find the difference between the two terms of the given A.P

Similarly,

Also,

As

Therefore, the first term of the given A.P is and the common difference …

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