1 thought on “Prove that root p +root q are irrational where p q are primes”
Answer:Answer Expert Verified
Rational numbers are closed under multiplication, so if we square both sides, we still get rational numbers on both sides. … So (x² – p – q) / 2 is rational. But since p and q are both primes, then pq is not a perfect square and therefore √(pq) is not rational.
Answer:Answer Expert Verified
Rational numbers are closed under multiplication, so if we square both sides, we still get rational numbers on both sides. … So (x² – p – q) / 2 is rational. But since p and q are both primes, then pq is not a perfect square and therefore √(pq) is not rational.
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