Exponential and Logarithmic Series


   
 
Graph of Exponential Function
For x Î R, the value of is uniquely defined.
 
of e to one place of decimal is 2.7. The approximate values of the function ex for some of the values of x are as follows:
 
 
 
We see that as x increases, the value of ex also increases indefinitely. Also, as x decreases, the value of ex tends toward zero. The function ex is one-one.
 
 
     
   
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