Solve the following subquestion
what is the common difference (d) of the A.P. 5,1,-3,-7,.....?
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Step-by-step explanation:
the common difference (d) of the A.P. 5,1,-3,-7,.....
d = 1-5 = -4
or it can be checked
by
d = -3-1 = -4
thus the d = -4
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