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Find the middle term in the expansion of : `\ (x-1/x)^(10)`

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`(x-1/x)^10`
Here , n is an even number .
`:.` Middle term `=(10/2+1)`th`=` 6th term
Now , we have
`T_6` `=` `T_(5+1)`
`=` `10_(C5x^10-5)``(-1/x)^5`
`-(10*9*8*7*6)/(5*4*3*2)`
`=`-252
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