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anonymous
 one year ago
\[\lim_{x \rightarrow \pi+}\sec2x\]
is it positive or negative?
anonymous
 one year ago
\[\lim_{x \rightarrow \pi+}\sec2x\] is it positive or negative?

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Empty
 one year ago
Best ResponseYou've already chosen the best response.2Any ideas? Where are you stuck?

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Is the cosine positive or negative in the neighborhood of \(\pi\)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't know I just cant't grasp the concept.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is one part of calculus I am just struggling with

Empty
 one year ago
Best ResponseYou've already chosen the best response.2Explain what you do understand and I can help you understand and fill in the gaps if you want to learn.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0When its on the graph i can get it but my teacher doesn't want us using a graph

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0usually I can solve backward when I don't understand it

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Come on... \(\cos(\pi) = 1\) \(\cos(2\pi) = +1\) What do we know about \(\sec(2\pi)\)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i have class but I will tr again later. hopefully It will help when i log back on

Empty
 one year ago
Best ResponseYou've already chosen the best response.2@Clare12 Well you are trying to run before you can walk if you don't use graphs. You need to spend more time visualizing roughly what trigonometric graphs look like with several common values such as \(\pi\) or \(\frac{\pi}{2}\) and others.
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