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Let z and w be complex numbers satisfying \(\lvert z \lvert=4\) and \(\lvert w \lvert=2.\) . Enter in the numbers

 

\(|z+w|, |zw|, |z-w|, \left| \dfrac{z}{w} \right| \)

 

below, in the order listed above. If any of these cannot be uniquely determined from the information given, enter in a question mark.

 May 19, 2021
 #1
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The answers are 6, 8, 2, 2.

 May 19, 2021

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