How do you write this complex number as an imaginary number? #sqrt(-4/16)# Precalculus Complex Numbers in Trigonometric Form Division of Complex Numbers 1 Answer Eddie Mar 4, 2017 #=i /2# Explanation: #sqrt(-4/16)# #= sqrt(-1 *1/4)# #= sqrt(-1) sqrt (1/4)# #=i /2# Answer link Related questions How do I graphically divide complex numbers? How do I divide complex numbers in standard form? How do I find the quotient of two complex numbers in polar form? How do I find the quotient #(-5+i)/(-7+i)#? How do I find the quotient of two complex numbers in standard form? What is the complex conjugate of a complex number? How do I find the complex conjugate of #12/(5i)#? How do I rationalize the denominator of a complex quotient? How do I divide #6(cos^circ 60+i\ sin60^circ)# by #3(cos^circ 90+i\ sin90^circ)#? How do you write #(-2i) / (4-2i)# in the "a+bi" form? See all questions in Division of Complex Numbers Impact of this question 1187 views around the world You can reuse this answer Creative Commons License