Question Detail
Question
Which of the following is a necessary step for proving 1+3+5+...+(2n-1) = n²?
Correct Answer
Option C is the correct answer.
Detailed Explanation
For mathematical induction, we must first verify the base case (n=1). The left side when n=1 is 1, and the right side is 1²=1, so the statement holds for n=1, establishing the base case before proceeding with the inductive step.
Hint
Mathematical induction requires both a base case and an inductive step.