Question

Find the term independent of x in the expansion of:

Answer 1

\[(2x+\frac{ 1 }{ x })^{10}\]

Answer 2

u know binomial expansion.........?

Answer 3

for term independent of x the power of x should be 0

Answer 4

general term in the expansion of (2x + 1/x)^10
is C(10,r )*(2x)^(10-r)*(x)^(-r)=C(10,r )*(2)^(10-r) *x^(10-2r)

Answer 5

hwat? Lol

Answer 6

for the term independent of x
10-2r =0
r=5
hence (5+1)th or 6th term is independent of x

Answer 7

its coefficient is given by C(10,5) * 2^5

Answer 8

@nitz r u suggesting that I expand this to the 10th power?! Why?! WHY?!

Answer 9

no i didnt say that...

Answer 10

i just asked u that u know binomial as this question belongs to that topic..

Answer 11

oh.