Argand Diagram?

θ is a variable. When you graph stuff like 2 or 3i you just just one real and 1 imaginary axis but when you plot something like 2cosθ you need two real axes and when you

Square both sides of |Z-(7+6i)| = |Z+(4+5i)| and simplify. Remember that Z = x + iy. |Z-(7+6i)|^2 = |Z+(4+5i)|^2 (x-7)^2 + (y-6)^2 = (x+4)^2 + (y+5)^2 x^2 - 14x + 49 + y^2 -12y+ 36

cos² + sin² = 1 so the modulus of your number is 1. 2π/3 radians is 120°. So draw a line 1 unit long at an angle of 120° with the positive x-axis (this is in