Lecture 4.4 bt
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Transcript of Lecture 4.4 bt
Today’s Agenda
Attendance / Announcements
Section 4.4
Quiz on Tuesday
Exam 3 (Chapter 4)
Fri 11/1
Solving Exponential Equations
6322 xx 644 92x 52328 xx
Solving Logarithmic Equations
07log15log xx
But these “one-to-one” equivalent
properties won’t always work….
254x
We will need to apply the “inverse” properties of logs and exponentials
Method #1
254x
Method #2
254x
Solving Exponential Equations
Solving Exponential Equations
42)2(3 x234 2xe
Solving Exponential Equations213 34 xx
4318 2x
Solving Logarithmic Equations
We can think of the inverse of logs as “exponentiating” both sides
Solving Logarithmic Equations
34log2 x2log x
Solving Logarithmic Equations
43log2 5 x 1.23ln x
Solving Logarithmic Equations
2ln112ln xx
Solving Logarithmic Equations
26log6log xx
Classwork / Homework
• Page 250
• 1 – 39 odd
• 45 – 53 odd