Final answer:
To construct a proof by contradiction for the given statement, assume the negation of the statement and show that it leads to a contradiction. Use the fact that when two positive numbers add, the answer has a positive sign.
Step-by-step explanation:
To construct a proof by contradiction for the given statement, we can follow the following steps:
- Assume the negation of the statement, which is: There exist positive real numbers r and s such that vr + Str + VS.
- Show that this assumption leads to a contradiction.
- Since r and s are positive real numbers, we can use the fact that when two positive numbers add, the answer has a positive sign.
- We can simplify the equation vr + Str + VS to obtain the contradiction 0 = 2V75.
- By reaching this contradiction, we have proved the statement to be true since its negation led to an impossibility.