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July 4th, 2019, 03:38 AM  #1 
Senior Member Joined: Oct 2015 From: Greece Posts: 137 Thanks: 8  Find the limit of f(t) using its graph. Exercise: forum.jpg In question c, the answer is does not exist because "As t approaches 0 from the left, f(t) approaches 1 and as t approaches 0 from the right, f(t) approaches 1". The solution above is from ThomasCalculus 13th edition. I can not understand the order... Why f(t) approaches 1 from the left and not the opposite? To me it seems the opposite. As f(t) approaches 0 from the left, f(t) approaches 1 and as t approaches 0 from the right, f(t) approaches 1. Last edited by babaliaris; July 4th, 2019 at 04:32 AM. 
July 4th, 2019, 06:49 AM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 2,980 Thanks: 1573 
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