Today is monday, Mr. Boim wants to teach Mathematics in XI-IPA 12.
Ahmed, one of the naughty boy in that class wants to go to the toilet. He is waiting for Mr. Boim. Five minutes later Mr. Boim came to that class, Ahmed standed up and said " Sir, may I go to the toilet ? ". Mr. Boim said," Sure, you can. But could you help me please to solve this problem before your time to go? Ahmed said " OK, Sir !!", he spoke very bravely. This is the problem : Can you show that 2 = 0 ? Now, please help him to solve this problem. If you can answer, post it to the following address :