Question

find the common difference for each of the A.P. -9,-5,-1,3,7
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Answer 1

Answer:

4

Step-by-step explanation:

-5 - (-9) = 4

-1 - (-5) = 4

3 - (-1) = 4

7 - 3 = 4

.: common difference = 4

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Answer 2

-9,-5,-1,3,7..

A1,À2,À3,A4,A5....

c.d=a2-a1

=-5-(-9)

-5+9

=4

next a3-à2,à4-a3,a5-a4

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