# The sum of the co-efficients of all even degree terms in

Question:

The sum of the co-efficients of all even degree terms in $\mathrm{x}$ in the expansion of $\left(x+\sqrt{x^{3}-1}\right)^{6}+\left(x-\sqrt{x^{3}-1}\right)^{6},(x>1)$ is equal to:

1. 32

2. 26

3. 29

4. 24

Correct Option: , 4

Solution: