Complex Numbers And Quadratic Equations question 494
Question: If $ | z_1 |=1,| z_2 |=2,| z_3 |=3 $ and $ | 9z_1z_2+4z_1z_3+z_2z_3 |=12 $ , then the value of $ | z_1+z_2+z_3 | $ is equal to :
Solution:
Answer: 2.00
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