Calculus Question - XP Math - Forums

 XP Math - Forums Calculus Question

 10-11-2011 #1 qwerty123   Join Date: Oct 2011 Posts: 1 Calculus Question 1) Evaluate lim ((1/x-1) + (1/(x+1)) / x x->0 Don't use derivatives for #1 2)Where is the function f(x) = | ln(x)+(sin(e^x)/x^2+5) | defined, and where is it continuous ? 3) Determine where the function f(x) = (x^2+5x+6)/(x+3) is discontinuous, and define a continuous extension g of f. 4) I KNOW THE ANSWER FOR THIS BUT DON'T KNOW WHAT IT IS ASKING FOR ? Suppose that x^2-6x-3 <= f(x) <= sqrt(9-x^2) on [0,3]. Give upper and lower bounds for lim x->0+ f(x) and lim x->3^- f(x) lim (x^2 - 6x - 3) = -3 as x --> 0+ lim v(9 - x^2) = 3 as x -->0+ -3 = f(x) = 3 lim (x^2 - 6x - 3) = -12 as x --> 3- lim v(9 - x^2) --> 0 as x --> 3- -12 = f(x) = 0 (What is the upper bound and lower bound ? I don't know that.) thanks....please answer these four questions perfectly. Only answer them if ur 100% sure.
 10-21-2011 #2 lolkidman Last Achievements     Join Date: Jun 2011 Posts: 53 ... Im thinking, what's Calculus? __________________ Czech out my fb page at: https://www.facebook.com/Grandmaster.Dudedudedudeo

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