Solution: In the expression of (x + 4y)^12, What is the numerical coefficient of the 5th term?

In the expression of (x + 4y)^12, the numerical coefficient of the 5th term is,

Problem Statement: ECE Board April 1998

In the expression of (x + 4y)^12, the numerical coefficient of the 5th term is,
• A. 63,360
• B. 126,720
• C. 506,880
• D. 253,440

The numerical coefficient of the 5th term is 126,720.

Solution:

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