If , , , and , then…

MATHEMATICS · Single correct · CBSE · Mathematics · Complex Numbers and Quadratic Equations · Complex Numbers and Quadratic Equations

Problem

If ∣z1∣=2|z_1|=2, ∣z2∣=3|z_2|=3, ∣z3∣=4|z_3|=4, and ∣z1+z2+z3∣=5|z_1+z_2+z_3|=5, then ∣4z2z3+9z3z1+16z1z2∣|4z_2z_3+9z_3z_1+16z_1z_2| is (1) 24 (2) 60 (3) 120 (4) 240

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