JEE Math Practice Question
The coefficient of x−5 in the binomial expansion of $${\left( {{{x + 1} \over {{x^{{2 \over 3}}} - {x^{{1 \over 3}}} + 1}} - {{x - 1} \over {x - {x^{{1 \over 2}}}}}} \right)^{10}},$$ where x $$ \ne $$ 0, 1, is :
- A.1
- B.4
- C.$$-$$ 4
- D.$$-$$ 1
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