Write the 4th term from the end in the expansion of

To find: 4th term from the end in the expansion of


Formula Used:


A general term, Tr+1 of binomial expansionis given by,


Tr+1 nCr xn-r yr where


nCr


Total number of terms in the expansion is 8


Thus, the 4th term of the expansion is T5 and is given by,


T5 7C5


T5


T5


T5


Thus, a 4th term from the end in the expansion of is T5


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