Science:Math Exam Resources/Courses/MATH152/April 2017/Question A 03
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Question A 03 

For Questions A1A3 below, let
Your answers should be in the form with and determined. A3) Compute . 
Make sure you understand the problem fully: What is the question asking you to do? Are there specific conditions or constraints that you should take note of? How will you know if your answer is correct from your work only? Can you rephrase the question in your own words in a way that makes sense to you? 
If you are stuck, check the hint below. Consider it for a while. Does it give you a new idea on how to approach the problem? If so, try it! 
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Hint 

Let . Then we have that </br> </br> Now solve for a and b. 
Checking a solution serves two purposes: helping you if, after having used the hint, you still are stuck on the problem; or if you have solved the problem and would like to check your work.

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Solution 

Found a typo? Is this solution unclear? Let us know here.
Please rate my easiness! It's quick and helps everyone guide their studies. Let . Then we have that </br> </br> We plug in z and u:</br> </br> We now equate the real and imaginary parts of both sides.</br> </br> We can multiply the second equation by 2:</br> </br> Adding gives the equation </br> Therefore, we get that</br> </br> Plugging into either equation gives</br> </br> Answer: 
Please rate how easy you found this problem:
Hard Easy 
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