Find the term independent of x in the expansion of {x+ 1/x}¹²

T_r+1= ¹²C_r(x)^12-r(1/x)^r

= ¹²C_r(x)^12-r(x)^-r

= ¹²C_r(x)^12-2r

12 -2r = 0

12 = 2r

r = 6

T₆₊₁ = T₇

T₇ is independent of x.

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