This is nearly impossible to read...
Is it
or
?
It is done by \neq
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For the question at hand, you need to determine a value c such that the function is continuous. One way could be to just plug in 1 in the above definition with the natural log, but you cannot do that since you'd get something of the form 0/0. Hence you need to find the limit of [LaTeX ERROR: Convert failed] as x approaches 1. Or more succinctly, find
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Once you find that, you can just set c equal to it. From the definitions of continuous functions, f(x) is continuous at point a if
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