Question

if tn is the n th term of an A.P then t2n-tn is what

Answer 1

As nth term is

tn = 3n -2

and common difference = difference of any two consecutive numbers of an ap so

the first term = 3(1) -2 = 3-2 = 1

similarly 2nd term = 3(2) -2 =6-2 =4

so common difference = 4 - 1 = 3

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