Question
Easy
To prove that $\sqrt{2}$ is an irrational number, a teacher begins by assuming that it is a rational number and then proceeds to show how this assumption is not feasible. This is an example of proof by
1
Induction
2
Deduction
3
Contradiction
4
Verification
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Pedagogy of Mathematics
Topic: Approaches & Evaluation in Mathematics Teaching
Correct Answer
Option C
Explanation
To prove that \(\sqrt{2}\) is an irrational number using the method described, the teacher employs a proof by contradiction. Let's delve into why Option 3 is the correct choice and why the other options are not applicable in this context. ### Explanation for Option 3: Contradiction Proof by contradiction is a logical method where we start by assuming the opposite of what we want to prove. In this case, theтАжRead More
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