Show that the coefficient of x^(4) in th...

Show that the coefficient of `x^(4)` in the expansion of `(x/2-3/x^(2))^(10) "is" 405/256.`

A

`(504)//(259)`

B

`(405)//(263)`

C

`(405)/(256)`

D

none of these

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The correct Answer is:

C

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