mohammed14 mohammed14

14-05-2017
Mathematics

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(X,-3,4X-1)is arithmetic sequence,find the value of X

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Аноним Аноним

14-05-2017

First write 2 equations for the common difference :-

-3-X = d
4X-1 -(-3) = d so:-

-3-X = 4X + 2
-5 = 5X
X = -1

and d = -3-(-1) = -2

and the sequence is -1 , -3, -5

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