If the fourth term in the expansion of (x+x^ _2x )^7 is 4480, then the value of x where x N is

JEE Main Mathematics question

If the fourth term in the expansion of is , then the value of where is

Answer: (A)

, so . With , ,

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-021326