Let z1=x1+y1i

Let z1=x1+y1i and z2=x2+y2i
a = Im (z1z2)
b = Re (z1/z2)


a = (Correct answer is: x1*y2+y1*x2-y1*y2) Wrong answer
b =  0

Step-by-step explanation:

z1=x1+y1i z2=x2+y2i  a=Im(z1 z2) a=x1 y2+y1 x2y1 y2

We will be pleased if You send us any improvements to this math problem. Thank you!


Tips to related online calculators

You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • Prove
    two_circles Prove that k1 and k2 are the equations of two circles. Find the equation of the line that passes through the centers of these circles. k1: x2+y2+2x+4y+1=0 k2: x2+y2-8x+6y+9=0
  • Find x 2
    sphere Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100. Write down the number of solutions.
  • Curve and line
    parabol The equation of a curve C is y=2x² -8x+9 and the equation of a line L is x+ y=3 (1) Find the x co-ordinates of the points of intersection of L and C. (2) Show that one of these points is also the stationary point of C?
  • Sphere from tree points
    sphere2 Equation of sphere with three point (a,0,0), (0, a,0), (0,0, a) and center lies on plane x+y+z=a
  • Functions f,g
    linear_eq Find g(1) if g(x) = 3x - x2 Find f(5) if f(x) = x + 1/2
  • Intersections 3
    intersect_circles Find the intersections of the circles x2 + y2 + 6 x - 10 y + 9 = 0 and x2 + y2 + 18 x + 4 y + 21 = 0
  • Expressions
    vyraz Find out value of expressions if a = -1, b =2: x=b - 2a - ab y=a3 - b2 - 2ab z=a2 b3 - a3 b2 w=a + b + a3 - b2
  • Please
    lom_paprsek Please determine the solvability conditions of the equation, solve the equation and perform the test: x divided by x squared minus 2x plus1 the whole minus x + 3 divided by x squared minus 1 this is equal to 0: x/(x2-2x+1) - (x+3)/( x2-1) = 0
  • Quadratic function 2
    parabola1 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)
  • Linear system
    linear_eq Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2
  • Linsys2
    linear_eq Solve two equations with two unknowns: 400x+120y=147.2 350x+200y=144
  • Faces diagonals
    cuboid If a cuboid's diagonals are x, y, and z (wall diagonals or three faces), then find the cuboid volume. Solve for x=1.3, y=1, z=1.2
  • Evaluate expression
    plusminus If x=2, y=-5 and z=3 what is the value of x-2y
  • Non linear eqs
    q2_non_linear Solve the system of non-linear equations: 3x2-3x-y=-2 -6x2-x-y=-7
  • My father
    tree3 My father has a big farm. 6/8 of it were planted with mango trees, 1/2 of the remainder are guava trees and the rest 10 trees are santol trees. What is the number of all trees?
  • Mappings of complex numbers
    complex_numbers Find the images of the following points under mappings: z=3-2j w=2zj+j-1
  • Algebra
    parabol If x+y=5, find xy (find the product of x and y if x+y = 5)