taiwan-gsat 2006 Q1

taiwan-gsat · Other · gsat__math Complex Numbers Arithmetic Geometric Properties of Triangles/Polygons from Affixes

1. Suppose a quadratic equation with integer coefficients $a x ^ { 2 } + b x + c = 0$ has one root equal to $4 + 3 i$. If the two roots of this equation and the origin are marked on the complex plane, the area of the triangle formed by these three points is
(1) 5
(2) 6
(3) 12
(4) 16
(5) 24

& C

1. Suppose a quadratic equation with integer coefficients $a x ^ { 2 } + b x + c = 0$ has one root equal to $4 + 3 i$. If the two roots of this equation and the origin are marked on the complex plane, the area of the triangle formed by these three points is\\
(1) 5\\
(2) 6\\
(3) 12\\
(4) 16\\
(5) 24

Paper Questions

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