The coefficient of x−5 in the binomial expansion of
,
where , is :
1
4
-4
1
As we learnt in
General Term in the expansion of (x+a)^n -
- wherein
Where
We will use general term in the expansion of offer simplyfing question.
General term of this expansion
Coefficient of x-5 means
Coefficient
Correct option is 1.
Option 1)
1
This is the correct option.
Option 2)
4
This is an incorrect option.
Option 3)
-4
This is an incorrect option.
Option 4)
1
This is an incorrect option.
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