A) 35
B) 38
C) 23
D) 58
Correct Answer: B
Solution :
\[{{T}_{r}}=\sum\limits_{r=0}^{n}{^{n}{{C}_{r}}}{{x}^{2n-2r}}.{{x}^{-3r}}\] \[2n-5r=1\]\[\Rightarrow 2n=5r+1\] for \[r=15.\]\[n=38\] smallest value of n is 38.You need to login to perform this action.
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