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
7417 Views
See similar Further Mathematics A Level tutorsRelated Further Mathematics A Level answers
All answers ▸Find the four roots of the equation z^4 = + 8(sqrt(3) + i), in the form z = r*e^(i*theta). Draw the roots on an argand diagram.
Could you explain to me how proof by induction works?
How far is the point (7,4,1) from the line that passes through the points (6,4,1) and (6,3,-1)?
A curve C has equation y = x^2 − 2x − 24 x^(1/2), x > 0. Find dy/dx and d^2y/dx^2. Verify that C has a stationary point when x = 4