Can someone help me to do questions : 1,2,3,4 ?

Q1 10 Points Using a proof by contradiction prove that Vrer (if x2 is irrational then x is irrational) Enter your answer here or Please select file(s) Select file(s) Save Answer Q2 10 Points Using a proof by contradiction prove Ynez (if n is odd then n is odd) Enter your answer here Q3 10 Points Using a proof by contrapositive prove Ynez (if nis odd then n is odd) Enter your answer here or Please select file(s) Select file(s) Save Answer Q4 10 Points Prove that m3 + 2n2 = 36 has no solution in positive integers Enter your answer here