JEE Math Practice Question
If the coefficients of x−2 and x−4 in the expansion of $${\left( {{x^{{1 \over 3}}} + {1 \over {2{x^{{1 \over 3}}}}}} \right)^{18}},\left( {x > 0} \right),$$ are m and n respectively, then $${m \over n}$$ is equal to :
- A.182
- B.$${4 \over 5}$$
- C.$${5 \over 4}$$
- D.27
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