Art of Problem Solving

AoPS Online

1991 AHSME Problems/Problem 18

Revision as of 00:03, 17 March 2013 by Ckorr2003 (talk | contribs) (Created page with "If <math>S</math> is the set of points <math>z</math> in the complex plane such that <math>(3+4i)z</math> is a real number, then <math>S</math> is a (A) right triangle (B) cir...")

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

If $S$ is the set of points $z$ in the complex plane such that $(3+4i)z$ is a real number, then $S$ is a

(A) right triangle (B) circle (C) hyperbola (D) line (E) parabola

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=1991_AHSME_Problems/Problem_18&oldid=51815"

© 2025 AoPS Incorporated