The coefficient of the middle term in th...

The coefficient of the middle term in the binomial expansion nin pwoers of x of `(1+alpha x)^(4) and " of "(1-alpha x)^(6)` is the same if `alpha` equals

A

`-(5)/(3)`

B

`(3)/(5)`

C

`(-3)/(10)`

D

`(10)/(3)`

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The correct Answer is:

C

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