" Q.Proof that "sqrt(5)" is an imational "

Proof that 3sqrt3 is an irrational number.

Prove that sqrt(p)+sqrt(q) is an irrational,where p and q are primes.

Prove that sqrt(p) + sqrt(q) is irrational, where p and q are primes.

Write the negation of the following statement : q: sqrt5 is rational.

Let p: 2 + 3 = 5, q = sqrt 2 is irrational. The symbolic form of the statement. " It is not true that 2 + 3 = 5 if and only if sqrt 2 is irrational ", is

Proof spirit contains.