Question: (6) How many roots does the equation z' 2z + 6z z + 1 = 0 have in the annulus {1 < |z[ <

(6) How many roots does the equation z' 2z + 6z z

(6) How many roots does the equation z' 2z + 6z z + 1 = 0 have in the annulus {1 < |z[ < 3}

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