Science:Math Exam Resources/Courses/MATH152/April 2015/Question A 16
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Question A 16 

is a matrix such that
Determine the entries of . 
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! 
Hint 

For a general matrix , what are and ? How can you use linearity to determine the former in this case, using the given information? 
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Solution 

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Please rate my easiness! It's quick and helps everyone guide their studies. First, note that and are the first and second columns of , respectively. The latter is given, and we notice that so 
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