Let n be 1.
(n-1)-n=(n-1)-1
((n-1)-n)^2=(n-1)^2-1
(n+1)(n-1)-n^2=(n+1)(n-1)-1
(n+1)(n-1)=(n+1)(n-1)-(1+n^2)
(n+1)=(n+1)-(1+n^2)
(1+1)=(1+1)-(1+1^2)
2=2-(1+1)
2=2-2
2=0?
There are 3 errors in this question. Can you spot them?
Tuesday, March 31, 2009
Monday, March 30, 2009
Thursday, March 26, 2009
Monday, March 23, 2009
Saturday, March 21, 2009
Holidays
Hi schooling readers, the holidays is coming to an end, and i hope you are enjoying it. Anyway if you are enjoying I am not. Infact my March holidays this year was not even considered a holiday to me.
Before I continue, let me ask you a simple question.
What is holiday to you? Is it a time to relax after the exams? Is it a time to do what you can't do during the term? Is it a time for you to distress?
Well my holiday is nothing different from school days. I still have to go to school everyday.
Before I continue, let me ask you a simple question.
What is holiday to you? Is it a time to relax after the exams? Is it a time to do what you can't do during the term? Is it a time for you to distress?
Well my holiday is nothing different from school days. I still have to go to school everyday.
Sunday, March 15, 2009
Maths Question
There are 2009 lighted light bulbs in a role. Every day, Mr Do will turn off all the odd numbered lighted light bulbs.
a) If Mr Do started this proccess on a Monday, on which day would he stop this proccess?
b) How many bulbs from the left is the last bulb to be switched off?
a) If Mr Do started this proccess on a Monday, on which day would he stop this proccess?
b) How many bulbs from the left is the last bulb to be switched off?
Friday, March 13, 2009
Slow Clock Fixed
Thanks to Lowawa, I finally manage to change my blog's clock to the correct one. Although the clock is fixed, you can still comment on the "Slow Clock" and this post. Just write what you want.
Tuesday, March 10, 2009
Monday, March 9, 2009
Maths Question
I have a padlock with 12 buttons, and the code can be a 1-12 digit number. How many types of combinations must you try out before hacking the code?
Sunday, March 8, 2009
Palindrome
A racecar is a racecar while a racecar is a racecar, and a racecar is also a racecar because a racecar is a racecar when a racecar is spelt backwards, so a racecar is a racecar and a racecar.
Hi readers did you realise something about words like racecar, mom, dad? Well, those words are palindrones. I am sure you are able too raftly figure out what a palindrome is from reading the above, and finding a similarity between the words racecar, mom and dad.
Do you know anymore of such interesting words? Please share.
Hi readers did you realise something about words like racecar, mom, dad? Well, those words are palindrones. I am sure you are able too raftly figure out what a palindrome is from reading the above, and finding a similarity between the words racecar, mom and dad.
Do you know anymore of such interesting words? Please share.
Slow Clock
My blog's timing is about 13 hours slow! Did you notice that? Anyway does anyone have any suggestions as to how to change the timing to a correct one?
Please feedback.
Please feedback.
Saturday, March 7, 2009
Math Question 2
Here is the next question. It is rather simple too.
How many 4 letters word can you form with the word TERENCE? ( It may not nessarily be a real word.)
Please leave your answers as a comment.
How many 4 letters word can you form with the word TERENCE? ( It may not nessarily be a real word.)
Please leave your answers as a comment.
Friday, March 6, 2009
1st Maths Question
Today, our maths teacher suggested to us the idea of posting maths questions on our blogs. My first question would be a simple one. Here it is.
What is the fomula for a+(a+1)+(a+2)+...+(n-2)+(n-1)+n?
What is the fomula for a+(a+1)+(a+2)+...+(n-2)+(n-1)+n?
Tuesday, March 3, 2009
Language Arts Assignment 2
Article from: The Straits Times Friday, Febuary 27 2009 pg. A12
Article Title: Scaling One Peak After Another
Being a victim of cerebral palsy, Ms Oh has done quite a commendable job of climbing one of the tallest mountains in South- east Asia, Mt Kinabalu, and writing a book that inspired others. Ms Oh, who walks with an awkward gait and speaks with great difficulty was often an easy target for taunts, cruel jokes and discrimination. Although a high fever rendered one of her four siblings mentally impaired, cancer robbed her of her doting father and her best friend, her late mother was bedridden and suffered from chronic skin disease which led to the amputation of her mother's right leg, and her brother was a compulsive gambler who lost her poor parents' savings, Ms Oh did not give up in self pity, but to chase and live her dreams. Evidently, we can learn lots of values from Ms Oh, things like resilience and positive thinking.
Article Title: Scaling One Peak After Another
Being a victim of cerebral palsy, Ms Oh has done quite a commendable job of climbing one of the tallest mountains in South- east Asia, Mt Kinabalu, and writing a book that inspired others. Ms Oh, who walks with an awkward gait and speaks with great difficulty was often an easy target for taunts, cruel jokes and discrimination. Although a high fever rendered one of her four siblings mentally impaired, cancer robbed her of her doting father and her best friend, her late mother was bedridden and suffered from chronic skin disease which led to the amputation of her mother's right leg, and her brother was a compulsive gambler who lost her poor parents' savings, Ms Oh did not give up in self pity, but to chase and live her dreams. Evidently, we can learn lots of values from Ms Oh, things like resilience and positive thinking.
Monday, March 2, 2009
On Saturday, Singapore's icon, The Merlion was struck by lightning. Part of its mane fell off, crashing to the floor. The Merlion stop spouting water many hours after. Today, in the news papers, on the front page of The Straights Times shows a picture of the Merlion being caged up. Contractors were engaged to repair the Merlion, and the public is still not allowed to access the 36 year old icon at the mouth of the Singapore River. What exactly has the Merlion done wrong to deserve to be struck by lightning, caged up, and isolated.
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