Find the term independent of x in the expansion of :
To Find : term independent of x, i.e. x0
For
a=2x, and n=9
We have a formula,
Now, to get coefficient of term independent of xthat is coefficient of x0 we must have,
(x)9-3r = x0
• 9 - 3r = 0
• 3r = 9
• r = 3
Therefore, coefficient of x0
Conclusion : coefficient of x0