Question

Find the common difference ap 3- 4n

Answer 1

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Tn = 3 - 4n

Put n = 1

=> T1 = 3 - 4 = -1

Put n = 2,

=> T2 = 3 - 4(2) = -5

Common difference = T2 - T1 = -5 - (-3) = -2

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