January 13, 2014 Precalc Warm Up # 4-1 Get in groups and solve the system: xy = 2 2log 2 x - log y = 2 2 January 13, 2014 Questions on #3-5? January 13, 2014 nd January 13, 2014 January 13, 2014 January 13, 2014 January 13, 2014 January 13, 2014 January 13, 2014 In Groups, solve the following. (give answers to 4 decimal places) Be ready to present to class 1. 2 + 4⋄10x-3 = 58 2. 4-e-6x = 1 3. January 13, 2014 In Groups, solve the following. (give answers to 4 decimal places) Be ready to present to class 1. 2 + 4⋄10x-3 = 58 2. 4-e-6x = 1 3. January 13, 2014 The previous problems were exponential equations. The following are logarithmic equations. Try these in groups, and be prepared to present: 4. logx+2(3x2+4x-14) = 2 5. log2(2x+1-8) = x January 13, 2014 The previous problems were exponential equations. The following are logarithmic equations. Try these in groups, and be prepared to present: 4. logx+2(3x2+4x-14) = 2 5. log2(2x+1-8) = x January 13, 2014 6. lnx - ln(x+5) = 6 7. 2log(x+1)+logx=2 January 13, 2014 6. lnx - ln(x+5) = 6 7. 2log(x+1)+logx=2 January 13, 2014 How is this problem different from the ones we just solved? Solve for x. 2 log(2x) - log4 = log(2x-1) January 13, 2014 Here's another one that gives some trouble: (logx)2 - 11 logx + 10 = 0 January 13, 2014 Along the same line, e2x-4ex-5 = 0 January 13, 2014 And perhaps the toughest of all, 22x+3-7·2x+1+5=0 January 13, 2014 Go over the no grapher quiz from before break #4-1p. 228 7LC, 9-16 LC on all The Unit Test is coming this Friday. It covers: 4.1-4.5 in PC book 7.1.2, 7.1.3. , 7.1.4, 7.1.5,
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