A community for students.
Here's the question you clicked on:
 0 viewing
cathyangs
 4 years ago
Disprove this proof of the statement 2=1
a=b
a^2=ab
a^2b^2=abb^2
(ab)(a+b)=b(ab)
((ab)(a+b))/(ab)=(b(ab))/(ab)
a+b=b
b+b=b
2b=b
2=1
cathyangs
 4 years ago
Disprove this proof of the statement 2=1 a=b a^2=ab a^2b^2=abb^2 (ab)(a+b)=b(ab) ((ab)(a+b))/(ab)=(b(ab))/(ab) a+b=b b+b=b 2b=b 2=1

This Question is Closed

nenadmatematika
 4 years ago
Best ResponseYou've already chosen the best response.1when you divide with (ab) in the fifth line, you must know that it's only possible when a is not equal to b, otherwise you will get dividing by zero which is not possible....so you can't divide by ab because your condition in the first line is a=b

cathyangs
 4 years ago
Best ResponseYou've already chosen the best response.0nice catch! :D I gave this to my dad (a "Permanentheaddamage") and he laughed when he saw it.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.