Plot the complex number z=3−4i on an Argand diagram.
Question 2
Skill question
Plot the complex number z=1+2i and its conjugate z on an Argand diagram.
Question 3
Skill question
For z=2+2i plot z and 2z on the same Argand diagram.
Question 4
Skill question
Plot the complex number z=−3+4i and its reflection in the real axis on an Argand diagram.
Question 5
Skill question
Given z1=2+3i and z2=−1+2i, plot the point representing z1+z2 on an Argand diagram.
Question 6
Skill question
Sketch the locus of points z in the Argand diagram satisfying Re(z)=−1.
Question 7
Skill question
Plot the complex number z=1−i and its image under multiplication by i on an Argand diagram.
Question 8
Skill question
Let z1=1+3i. Find the image of z1 under multiplication by i and plot both points on an Argand diagram.
Question 9
Skill question
Plot the points corresponding to z=2+i, −z, z and −z on an Argand diagram and describe the quadrilateral formed.
Question 10
Skill question
Vertices of a triangle in the Argand diagram are given by z1=i,z2=2,z3=−1+2i. Plot these points and determine the coordinates of the centroid on the diagram.