Finding modulus and argument of complex number (x+iy)
Draw argand diagram
Modulus=|z|= length of the line
So |z|=(x2+y2)0.5
Argument=Angle between real (x axis) and line
so arg(z)=arctan(y/x)
EF
Answered by Emma F. • Further Mathematics tutor
7525 Views
See similar Further Mathematics A Level tutorsRelated Further Mathematics A Level answers
All answers ▸Find the vector equation of the line of intersection of the planes 2x+y-z=4 and 3x+5y+2z=13.
Find the eigenvalues and eigenvectors of A = ([2, 0 , 0], [0, 1, 1], [0, 3, 3])
Given a curve with parametric equations, x=acos^3(t) and y=asin^3(t), find the length of the curve between points A and B, where t=0 and t=2pi respectively.
Solve the following inequality: 2x^2 < x+3