Math, asked by sirajdeen021273, 2 months ago

5.
The expansion of 2m(3mº-4n+7) is​

Answers

Answered by milen3093
0

Answer:

option is

A

(34(n−r))!(34(2n+r))!4n!

The (k+1)th term of the given expression is

    Tk+1=4nCkx(4n−k)(x21)k

 

    We know the coefficient of x is 4r, so, 4n−k−2k=4r

                                                                  k=34(n−r)

    

     The (k+1)th term will be,

                     4nC34(n−r)(x)(4n−34(n−r))(x21)34(n−r)

         

    The coeffecient will be 4nC34(n−r)

       That is,

       = 

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