Pre-Calc Homework Solutions 323

Pre-Calc Homework Solutions 323 - Section 8.1 5. 3. 323 [0,...

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Unformatted text preview: Section 8.1 5. 3. 323 [0, 2] by [0, 3] [0, 3] by [0, 3] As t1, 6. t t 1 1 approaches 2. From the graph, the limit appears to be 1. The limit leads to the indeterminate form 0. 1 x x 1 x ln 1 ln 1 x ln 1 1 x 1 1 1/x 1 x2 1 x2 1 x 1 x ln 1 [0, 500] by [0, 3] lim x0 As x , 7. 4x 2 1 approaches 2. x 1 1 x lim x0 lim x0 1 1 x 1 1 x x0 x lim 0 [ 5, 5] by [ 1, 4] Therefore, lim 1 x0 sin 3x As x0, approaches 3. x 1 x x lim f (x) x0 lim e ln f (x) x0 e0 1. 8. 4. [0, ] by [ 1, 2] [0, 1000] by [0, 1] As 9. y 10. y tan , 2 2 tan 1 sin h h approaches 1. From the graph, the limit appears to be about 0.714. 5x 2 2 x 7x lim 3x 1 lim x 10x 3 14x lim x 10 14 3 11 5 7 0.71429 (1 h)1/h 5. lim x3 1 4x 3 x 3 x1 3x 2 12x 2 1 x1 lim Section 8.1 Exercises 1. [0, 2] by [0, 1] [0, 2] by [0, 1] From the graph, the limit appears to be . x 2 x2 x 1 4 The graph supports the answer. 6. lim x0 1 lim 2 4 1 x2 2x lim 1 4 cos x x2 lim x0 sin x 2x lim x0 cos x 2 1 2 2. [ 2, 2] by [ 2, 6] [ 5, 5] by [ 1, 1] From the graph, the limit appears to be 5. lim x0 The graph supports the answer. sin 5x x lim x0 5 cos 5x 1 5 ...
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