Q. 53.6( 8 Votes )

Find the 4th term

Answer :

The general term Tr+1 in the binomial expansion is given by Tr+1 = nCr an-r br

Here a= x , n =12 , r= 3 and b = -2y


T4 = 12C3 x9 (-2y)3


=


=


= -1760 x9 y3

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