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Prove that root 3+ root 7 is irrational?
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Prove that root 3+ root 7 is irrational?
Proof that √3 + √7 is irrational:
  1. Assume √3 + √7 is rational
  2. Let's assume √3 + √7 = a/b, where a and b are integers with no common factors
  3. Squaring both sides, we get 3 + 2√21 + 7 = a^2/b^2
  4. Which simplifies to 2√21 = a^2/b^2 - 10
  5. Since √21 is irrational, a and b must cancel out, leading to a contradiction
  6. Therefore, our initial assumption that √3 + √7 is rational is false
  7. Hence, √3 + √7 is irrational

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Prove that root 3+ root 7 is irrational?
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