Question
Question: In the expansion of \(\left( \sqrt{x^{5}} + \frac{3}{\sqrt{x^{3}}} \right)^{6}\) coefficient of x<su...
In the expansion of (x5+x33)6 coefficient of x3 is –
A
0
B
120
C
420
D
540
Answer
540
Explanation
Solution
r = α+βnα−m
Ž r = 5/2+3/26×5/2−3 = 412 = 3
\ T4 = 6C3 (3)3 = 540