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T2_Day2 - Questions 41 and 15 are also important use...

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2nd REVIEW DAY Instructor: Ms. Hoa Nguyen ([email protected]) In the Review Set (Sections 4.4 - 4.7) , the questions that most of you have trouble with are Questions 41,15,3,4,5,6,7,1,2,11,12,42,21,20,13,14,16,34,35,38. Pay attention to the questions that you need to do an extra step to find the right answer. The extra steps can be the following: ln 7 2 ln 3 = ln 7 ln 9 (Question 19) ln 1 2 - 0 . 023 = - ln 2 - 0 . 023 = ln 2 0 . 023 (Question 38) ln 3 - 2 - 5 = - ( ln 3 - 2) 5 = - ln 3+2 5 (Question 42) Also, review the questions 5, 6 ,7 to understand which statement is correct.
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Unformatted text preview: Questions 41 and 15 are also important; use quadratic formula to find the (real) zeros. Reminder : After solving the log equations in Section 4.5, you need to check your so-lutions by substituting the solutions into the log functions of the original equation. The solution will be rejected if the log function becomes UNDEFINED. 1...
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