Find the middle terms in the expansion of \left (\dfrac {x}{3}+ 9y | Filo
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Class 11

Math

Algebra

Binomial Theorem

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Find the middle terms in the expansion of

Solution: It is known that in the expansion if is even, then the middle terms is  term.
Therefore, the middle term in the expansion of is  term
which is,


Thus the middle term in the expansion of  is
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