Question -
Answer -
Given:
(x2┬а+1/x)12
If┬аx-1┬аoccursat the (r┬а+ 1)th term in the given expression.
Then, we have:
Tr+1┬а=┬аnCr┬аxn-r┬аar
For this term tocontain x-1, we must have
24 тАУ 3r = -1
3r = 24 + 1
3r = 25
r = 25/3
It is not possible,since r is not an integer.
Hence, there is noterm with x-1┬аin the given expansion.