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# Exponential and Logarthmic funtions

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### Exponential and Logarthmic funtions

1. 1. Exponential and Logarithmic Functions Exercise 7.2 A Lecture by Abdul Ghaffar Khan
2. 2. Exercise 1.2
3. 3. Exercise 1.2
4. 4. Exercise 1.2
5. 5. Exercise 1.2
6. 6. Exercise 1.2
7. 7. Question # 1 <ul><li>An investment of \$200,000 is made which earns interest at the rate of 8 percent per year. If interest is compounded continuously: </li></ul><ul><ul><li>(a) Determine the exponential function which states the compound amount as a function of years of investment t . </li></ul></ul><ul><ul><li>(b) What will the \$200,000 grow to if it is invested for 5 years? 10 years? </li></ul></ul><ul><li>Ans. a) </li></ul><ul><li>The exponential function is as follows </li></ul><ul><li>b) </li></ul>
8. 8. Question # 3 In Exercise 1, determine the length of time required for the investment to double in value. ( To quadruple self )