What is the complex conjugate of #3i#? Precalculus Complex Zeros Complex Conjugate Zeros 2 Answers Konstantinos Michailidis Sep 15, 2015 It is #-3i# Answer link VinÃcius Ferraz Sep 15, 2015 #-3i# Explanation: conj#(0 + 3i) = 0 - 3i# Answer link Related questions What is a complex conjugate? How do I find a complex conjugate? What is the conjugate zeros theorem? How do I use the conjugate zeros theorem? What is the conjugate pair theorem? How do I find the complex conjugate of #10+6i#? How do I find the complex conjugate of #14+12i#? What is the complex conjugate for the number #7-3i#? What is the complex conjugate of #3i+4#? What is the complex conjugate of #a-bi#? See all questions in Complex Conjugate Zeros Impact of this question 8331 views around the world You can reuse this answer Creative Commons License