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Chapter 2: Q26P (page 53)
Find the absolute value of each of the following using the discussion above. Try to do simple problems like these in your head-it saves time.
.
The absolute value is .
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Use Problems 27 and 28 to find the following absolute values. If you understand Problems 27 and 28 and equation (5.1), you should be able to do these in your head.
Solve for all possible values of the real numbers x and y in the following equations.
Solve for all possible values of the real numbers x and y in the following equations. .
Express the following complex numbers in the x+iy form. Try to visualize each complex number, using sketches as in the examples if necessary. The first twelve problems you should be able to do in your head (and maybe some of the others鈥攖ry it!) Doing a problem quickly in your head saves time over using a computer. Remember that the point in doing problems like this is to gain skill in manipulating complex expressions, so a good study method is to do the problems by hand and use a computer to check your answers.
23.
Solve for all possible values of the real numbers and in the following equations.
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