The term independent of x in the expansion of (9x-1/{3\sqrtx})^{18} , x > 0 , is a times the corresponding binomial coefficient. Then a is

Correct Answer is : None of these

BITSAT 2011 Paper

Section: Mathematics

Question : 90 of 150

Marks: +1, -0

The term independent of x in the expansion of (9x−

3√x

)18 , x > 0 , is a times the corresponding binomial coefficient. Then a is

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