document.write( "Question 1118071: What is the region represented by the inequality 3 < |z - 2 - 3i| < 4 in the argand plane.
\n" ); document.write( "According to my solution
\n" ); document.write( "I assume the value of Z = x+ yi and the final equation I have got on solving, is like that
\n" ); document.write( "9 < x^2 + y^2 - 4x - 6y + 13 < 16.
\n" ); document.write( "Now I am unable to solve further. Please explain it
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Algebra.Com's Answer #733292 by math_helper(2461)\"\" \"About 
You can put this solution on YOUR website!
| z - 2 - 3i | < 4 ==> { All the points where the distance from z to 2+3i is less than 4 }
\n" ); document.write( "3 < | z - 2 - 3i | ==> { All the points where the distance from z to 2+3i is greater than 3 }\r
\n" ); document.write( "\n" ); document.write( "Therefore, 3 < |z - 2 - 3i | < 4 is the intersection of those two sets.
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\n" ); document.write( "\n" ); document.write( "That intersection is a ring centered on 2+3i where the inner radius of the ring is 3 and the outer radius is 4 (only the space interior to these two radii are part of the solution, as both sides have strict inequalities - see the area between the blue and green circles below).
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\n" ); document.write( "Edited to change “union” to “intersection”
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