Use a table of values of f(x) to estimate the value of the limit to four decimal places. idk if I am just not knowing how to do this, but if someone could walk me through this I would be more than greatful!
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Originally Posted by ryan18 Use a table of values of f(x) to estimate the value of the limit to four decimal places. idk if I am just not knowing how to do this, but if someone could walk me through this I would be more than greatful! what about using the "trick" that i showed you in the other post?
Originally Posted by felper what about using the "trick" that i showed you in the other post? What do you mean? Multiplying it by the same thing just a + instead of a -? Sorry I am horrible with LaTeX I tried, but it didnt turn out right.
Yeah. See that link http://www.wolframalpha.com/input/?i=limit+x+to+-infinity+(sqrt(3x^2%2B4x%2B5)-sqrt(3x^2%2B3x%2B7)) and try the "technique" that i told you.
Holy mother I can't believe I typed that all out.
There was a solution already posted similar to this question here: http://www.mathhelpforum.com/math-he...-infinity.html
Wouldn't it be better to do what the problem told you to do? The problem said "Use a table of values of f(x) to estimate the limit to four decimal places". When x= -1000, that expression is -0.2894. When x= -1000000 that expression is -0.2887. etc.
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