Please indicate the method of proof and begin each sentence of the proof on a new line. Result 2 If x and y are positive real numbers, then /x+ y # Vx + /y .

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: Select two positive integers a and b with 5 <  a  ≤  20  and 5  <  b ≤  20.

A:

Q: help please use the contraposition to prove if x+ y &lt; 10,  then x&lt; 5 or  y&lt; 5.

A: Step 1: Step 2: Step 3: Step 4:

Q: Determine whether the statement, given in inverted commas" is trueor false. If the statement is…

A: Irrational numbers cannot be negative.

Q: Please prove these statements. I don't need examples. I need proper proofs

A:

Q: Help please to prove this by contradiction if x+ y &lt; 10,  then x&lt; 5 or  y&lt; 5.

A: To prove the statement "if x+y&lt;10, then x&lt;5 or y&lt;5" by contradiction, we follow these…

Q: Write the statement “Every real number is also a complex number” as an if then statement, then right…

A: " Every real number is also a complex number”  If then statement is as follows If a number is real…

Q: Sect - tant = sect + tant

A: let  H=sec(t)-tan(t)

Q: For all integers n, if 6 | n, then 9 | ((n^2) + 21n/2)

A:

Q: a.Given an integer a, then a² + 4a + 5 is odd if and only if a is even. b. There exists a positive…

A: Since you have posted multiple subpart questions, we will solve the first three questions for you.…

Q: What is "One-quater of what number is 12

A: We have to find One-quater of what number is 12.

Q: When can a theorem be cited as a “reason" for a proof?

A: