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November 20th, 2015, 03:47 AM   #1
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Shubhankar is offline  
November 20th, 2015, 05:15 AM   #2
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Do you know what $\displaystyle \int 1 dx$ is? What about $\displaystyle \int -1 dx$?

Do you know what |x+ 1| means? If you do, you should see that $\displaystyle \frac{|x+1|}{x+ 1}$ is a very simple function!
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November 20th, 2015, 01:55 PM   #3
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It's even simpler when you see that x+1 > 0 for x > -1.
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