To select: The correct option which shows solution of fourth term in expansion
(a).
(b).
(c).
(d).
Answer to Problem 13CR
The correct option is (a).
The solution of fourth term in expansion
Explanation of Solution
Given information:
Calculation
Consider the equation:
Apply the binomial theorem:
Use the formula:
Put the values:
Simplify equation (2):
Simplify equation (3):
Simplify equation (4):
The correct option is (a).
The solution of fourth term in expansion
Chapter 11 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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