Question

write the common difference of
the A. P 7,5,3,1,-1, - 3​

Answer 1

Answer:

-2 is the ans.

A.p arithmetic progression..

Step-by-step explanation:

C.D. (common difference) = 2nd term - 1st term

5-7 = -2.

7,5,3,1,-1, - 3 is -2 hope it will help you..

have a nice day..

Answer 2

$a = 7 \\ 7 + d = 5 \\ d = 5 - 7 = - 2 \\ \\ a + 2d = 3 \\ 7 + 2d = 3 \\ 2d = 3 - 7 \\ 2d = - 4 \\ d = \frac{ - 4}{2} \\ d = - 2 \\ \\ \\ therefore \: the \: common \: difference \: be - 2$

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