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Subjects
Class 10MathematicsReal NumbersProof of irrationality of √2, √3, √5HardLevel 16
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In the proof of irrationality of (\sqrt{3}), which statement should come just before the final conclusion?

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Answer and explanation

Correct answer: Both (p) and (q) are divisible by (3), which contradicts being coprime

Step 1: The proof shows both (p) and (q) are divisible by (3). Step 2: This contradicts their coprime condition. Step 3: After this, the final conclusion is written that (\sqrt{3}) is irrational.

Related tags

Sqrt3 ProofPre Final StepHardClass 10

Frequently asked questions

What is the correct answer to this question?

Both (p) and (q) are divisible by (3), which contradicts being coprime

Why is this the correct answer?

Step 1: The proof shows both (p) and (q) are divisible by (3). Step 2: This contradicts their coprime condition. Step 3: After this, the final conclusion is written that (\sqrt{3}) is irrational.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Proof of irrationality of √2, √3, √5.

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10 more MCQs
  1. 1Which assumption is taken first to prove that (\sqrt{2}) is irrational?
  2. 2If (\sqrt{2}=\frac{p}{q}), what is obtained after squaring both sides?
  3. 3From the equation (p^2=2q^2), what do we learn about (p^2)?
  4. 4If (p^2) is even, which conclusion about (p) is correct?
  5. 5If (p) is even, in which form can (p) be written?
  6. 6What conclusion is obtained by putting (p=2k) in (p^2=2q^2)?
  7. 7What is the final contradiction in the proof of (\sqrt{2})?
  8. 8What is the correct final conclusion of the proof of (\sqrt{2})?
  9. 9If (\sqrt{3}) is assumed rational, in which form is it written?
  10. 10If (\sqrt{3}=\frac{p}{q}), which equation is obtained after squaring?
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