How to solve math placement test questions #14 and #15?

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Discussion Overview

The discussion revolves around solving specific math placement test questions (#14 and #15) from a college placement test. Participants are seeking clarification on the problems and the meaning of the "i" symbol in mathematics.

Discussion Character

  • Homework-related, Conceptual clarification

Main Points Raised

  • The original poster (OP) requests a step-by-step explanation for solving two specific math problems.
  • One participant advises that the OP should first master the underlying theory before attempting the problems.
  • The OP expresses uncertainty about the appropriate forum section for their question and requests a move to the correct section.
  • Another participant clarifies that "i" is typically defined as \sqrt{-1.

Areas of Agreement / Disagreement

There is no consensus on how to approach the problems, as the OP is seeking help while another participant emphasizes the importance of understanding the theory first. The discussion remains unresolved regarding the specific solutions to the problems.

Contextual Notes

The OP's request for help is contingent on their understanding of the theory behind the problems, which has not been established in the discussion.

Who May Find This Useful

Students preparing for math placement tests or those seeking clarification on mathematical symbols and concepts.

ussjt
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I am getting ready to take my placement test for college, but it has been over a year since I have taken math. So could some one explain to me, in step by step form, how to solve #14 and #15.
http://www.math.ohio-state.edu/counseling/imgs/D-Test02.jpg

here are the answers:
http://www.math.ohio-state.edu/counseling/imgs/D-Test_Answers04.gif

Thanks for any help.
 
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I'm sorry, we don't do that here. We're waiting for the OP to draw the first blood. As an advice, never apprach any exercise without mastering the theory behind it.

Daniel.

P.S.Next time, post in the Homework section (it looks like HS to me) after having read the guidelines atop the HS homework help forum.
 
Last edited:
sorry, I was not sure what section to put it in. If someone could please move it, then that would be great.


About the problems...the only real question I have is what does the "i" symbol stand for. I remember seeing it before, but no one can seem to remember what it is.
 
"i" is usually defined as [itex]\sqrt{-1}[/itex]
 

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