%253Cp%253Eplease%2520help!%253C%252Fp%253E%250A%253Cp%253E%253Cbr%2520%252F%253
ID: 2962998 • Letter: #
Question
%253Cp%253Eplease%2520help!%253C%252Fp%253E%250A%253Cp%253E%253Cbr%2520%252F%253E%253C%252Fp%253E%250A%253Cp%253E%253Cimg%2520class%253D%2522user-upload%2522%2520src%253D%250A%2522http%253A%252F%252Fmedia.cheggcdn.com%252Fmedia%25252Fb2c%25252Fb2c058a5-789e-49dc-b176-934e56a53064%25252Fphpe4uSvN.png%2522%250Aheight%253D%2522726%2522%2520width%253D%2522596%2522%2520%252F%253E%253C%252Fp%253E%250A%253Cp%253E%253Cbr%2520%252F%253E%253C%252Fp%253E%250A%253Cp%253EHere%2520is%2520the%2520note%253A%253C%252Fp%253E%250A%253Cp%253E%253Cbr%2520%252F%253E%253C%252Fp%253E%250A%253Cp%253E%253Cimg%2520class%253D%2522user-upload%2522%2520src%253D%250A%2522http%253A%252F%252Fmedia.cheggcdn.com%252Fmedia%25252Ff5f%25252Ff5fcf2d0-4e5f-4567-a11b-df02a75414b4%25252FphpCVHhtB.png%2522%250Aheight%253D%2522899%2522%2520width%253D%2522547%2522%2520%252F%253E%253C%252Fp%253E%250AExplanation / Answer
1.)
a.) {a| a is not 0 }
b.) no such a exists
c.) {a| a is not 0 or 1}
d.) {a| a is not 0 or 1}
e.) {a| a is not 1,1/2,1/3,1/4,....}
2.)
f.) x is continuous at 0 hence limit exists at 0
g.) sin(1/x) is not continuous at 0 hence limit does not exist at 0
h.) x+sin(1/x) is not continuous at 0 hence limit does not exist at 0
i.) xsin(1/x) is continuous at 0 hence limit exists at 0
j.) 1/x is not continuous at 0 hence limit does not exist at 0
k.) 1/xsin(1/x) is not continuous at 0 hence limit does not exist at 0
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