Question

Find the first term and common difference 3,1,-1,-3,........​

Answer 1

Answer:

Step-by-step explanation:

First term = 3

Common difference = ( - 2 )

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Answer 2

Answer:

first term=3

common difference=-2

Step-by-step explanation:

Formula to calculate the common difference is

=a2-a1

=1-3

=-2

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