Question

Find the common difference of ap 1,-1,-3-5

Answer 1

-2 is the common difference

Answer 2

The common difference of the AP 1 , - 1 , - 3 , - 5 is - 2

Given :

The AP 1 , - 1 , - 3 , - 5

To find :

The common difference of the AP

Solution :

Step 1 of 2 :

Write down the given AP

The given AP is 1 , - 1 , - 3 , - 5

Step 2 of 2 :

Find common difference of the AP

First term = 1

Second Term = - 1

Third term = - 3

Fourth term = - 5

Now common difference is defined as the difference between the successive term and its preceding term.

Then common difference of the AP

= Second Term - First term

= - 1 - 1

= - 2

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