# Previous answers scalcet7 23029 evaluate the limit if

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lim t 4 81 3
(a) Sketch the graph of this function.
6. 3/3 points | Previous Answers SCalcET7 2.3.029. Evaluate the limit, if it exists. (If an answer does not exist, enter DNE.) -2.5 -5/2 Solution or Explanation Click to View Solution 7. 5/5 points | Previous Answers SCalcET7 2.3.047. The signum (or sign) function , denoted by sgn, is defined by t 3 t 27 lim t 0 5 t 1 + t 5 t sgn x = .
2/21/14, 2:35 PM Chapter 2.3 HW (b) Find each of the following limits. (If an answer does not exist, enter DNE.) (i) 1 1 (ii) -1 -1 (iii) DNE DNE (iv) 1 1 Solution or Explanation Click to View Solution 8. 4/4 points | Previous Answers SCalcET7 2.3.048. Let (a) Find the following limits. (If an answer does not exist, enter DNE.) (b) Does exist? f ( x ) = . 2 + 1 if x < ( x 3 ) 2 if x f ( x ) = 2 f ( x ) = 4 lim x 1 lim x 1 + f ( x ) lim sgn x lim x 0 + sgn x lim x 0 sgn x lim x 0 |sgn x | lim x 0 x 1 1 2 4 x
Page 4 of 9 (c) Sketch the graph of f .
2/21/14, 2:35 PM Chapter 2.3 HW Page 5 of 9 Solution or Explanation
2/21/14, 2:35 PM Chapter 2.3 HW
Page 6 of 9 9. 7/7 points | Previous Answers SCalcET7 2.3.050. Let (a) Evaluate each of the following, if it exists. (If an answer does not exist, enter DNE.) (i) 1 1 (ii) 1 1 (iii) 2 2 (iv) -2 -2 (v) 0 0