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Let  u and w be complex numbers such that:

|u| = 5, |w| = 3, |u+w| = 6

Calculate  |u+2w| with proof.

 Aug 21, 2020
 #1
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|u + 2w| = sqrt(26).

 Aug 21, 2020
 #2
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could you explain this please?

Guest Aug 21, 2020

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