Question

Does the expansion contain a term independent of x.( x+1/x)^9​

Answer 1

Answer:

Here, we are looking for a term which is independent of x, so the power of x must be 0. Now when we know that (r+1)th term is independent and we have also calculated the value of r, then the term independent of x will be (r+1) = 2+1= 3. Therefore, 3rd term is independent of x in the expansion of (√x3+√32x2)10.