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Complex Numbers
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Questions (982)
Given complex numbers m and n below, what is m + n?
m = 10 + i n = 4 - 3i A. 14-3i B.14-2i C.9+i D.9+7i I think it's B.
4 answers
asked by
Emily
790 views
I'm doing some practice questions for my Complex Numbers unit and I'm confused on how to get the answer for this problem:
4 answers
asked by
Maia
528 views
Find all of the solutions of the equation x^4-625i=0 and represent the solutions graphically.
3 answers
asked by
Cain
645 views
Simplify the expression
-5+i/2i -5+i over 2i
5 answers
asked by
steve
400 views
For z1 = 4cis (7pi/6) and z2 = 3cis(pi/3), find z1 * z2 in rectangular form.
3 answers
asked by
Sam
1,777 views
Use De Moivre's Theorem to write the complex number in trigonometric form
(cos(2pi)/7)+ i sin((2pi)/7))^5
3 answers
asked by
O
1,627 views
Have a question on complex numbers.
Z1= 1+j2, Z2= 2+j5 Find total impedance in Cartesian and polar form of two impedances in
2 answers
asked by
Danny
1,252 views
The system of equations:
|z-2-2i|=sqrt(23), |z-8-5i|=sqrt(38) has two solutions z_1 and z_2 in complex numbers. Find (z_1+z_2)/2.
3 answers
asked by
majorbill
1,126 views
Find the equation of the locus of the point representing z if |z-5-12i| + |z-5+21i|=13
4 answers
asked by
Daksh
795 views
Please help me with this problem.
Simplify. √(-24 - 10i)
4 answers
asked by
herp_derp
2,549 views
There are four complex fourth roots to the number 4−43√i. These can be expressed in polar form as
z1=r1(cosθ1+isinθ1)
3 answers
asked by
Mathslover
1,143 views
Write the complex number z = −6 in polar form
3 answers
asked by
Jane
463 views
I'm wondering how to answer this.
The conjugate of 2-Square root 3 is?
4 answers
asked by
Krissy
755 views
Simplify.
(2-5i)-(3+4i)
3 answers
asked by
Cynthia
834 views
the complex numbers 1,-1,iorta root3 form which type of triangle in graphical form
3 answers
asked by
edward
365 views
find the quotient z/w
z=8(cospi/3+isinpi/3) w=4(cospi/18+isinpi/18)
4 answers
asked by
joe
319 views
find the fifth roots of -32i
3 answers
asked by
joe
577 views
Multiply.
x-(6+2i)][x-(6-2i)] Note that these expressions contain complex numbers. Simplify your answer as much as possible.
3 answers
asked by
Rachal
1,390 views
what is the square root of negative 150?
2 answers
asked by
Allison
886 views
The expression (3-7i)^2 is equivilant to? i know what the answer is im just not sure how to get it please help
4 answers
asked by
Sally
1,644 views
(2-2i)^5
find the given power write answer in rectangular form
3 answers
asked by
Stacey grahaM
1,300 views
How do you do this problem?
1+i(square root of 3)
1 answer
asked by
Kevin
318 views
write the sum or difference in the standard form a+bi
(2-3i)+(6+5i) (squareroot5-3i)+(-2+squareroot-9)
3 answers
asked by
tim
704 views
Simplify (4 – 5i)(3 + 7i) and write the answer in the form a + bi, where a and b are real numbers.
4 answers
asked by
Jacinta
1,500 views
How do you find the 6th root of -i?
3 answers
asked by
Sara
290 views
Write the expression as a complex number in standard form.
(5-2i)-2(3+i) Please explain how to do this. I don't know how.
4 answers
asked by
Kiley
642 views
square root of -45?
(using imaginary numbers)
3 answers
asked by
krystal
1,086 views
let z= a+bi be a complex number.
it is given that the quotient (z-i)/(z-1) is purely imaginary. show that z lies on a circle and
5 answers
asked by
Anne
603 views
z^4 + 81 = 0 (solve)
change it to polar, then take the root. z^4= 81@180 z= 3@180/4 + n90 where n=0, 1, 2, 3 check: z= 3@180/4 +
3 answers
asked by
kevin
1,557 views
how does (x-2-3i)(x-2+3i)=0 turns into (x-2)^2 - (3i)^2=0?
2 answers
asked anonymously
23 views
can you simplify (x-2-3i)?
2 answers
asked anonymously
20 views
how does (x-2-3i) simplify to (x-2)^2?
2 answers
asked anonymously
29 views
root 3 cis 4pi/3 turn it in to rectangular form
the answer is root3/2 and 3/2i explain
2 answers
asked by
p
45 views
When -24 + 7i is converted to the exponential form re^{i \theta}, what is cos(theta)?
4 answers
asked by
Joe
1,575 views
are these answers right?
1. �ã-121 = i�ã11 2. -2�ã-144 = 2i�ã144 = 2i*12=24i 3. �ã-75 = i=�ã75 = i�ã5sq*3 = 5i�ã3
7 answers
asked by
teri
513 views
Express your answer in the form found using Euler's Formula, The cube roots of 2 + 3i
3 answers
asked by
Nick
807 views
fin the product z1 * z2 and quotient z1/z2 using the standard form for z1 and z2.
z1 = 2 - 3i and z2 = 1 - sqrt 3i
3 answers
asked by
Yoshi
1,374 views
Match the equation with its solution.(3 points)
Put responses in the correct input to answer the question. Select a response,
2 answers
asked anonymously
63 views
1. Number like √(-5),√(-10),√(-24) are called:
A. Rational numbers B. Irrational numbers C. Non-real numbers
2 answers
asked anonymously
31 views
3 (2i - 7) = 6i - 21
how many solutions does it have?
13 answers
asked anonymously
31 views
3(2i−7)=6i−21
infinite solutions i = 5\ i = 4/13 i = -1/3 i = 8
2 answers
asked by
Ihateconnexus
33 views
Match the equation with its solution.(3 points)
Put responses in the correct input to answer the question. Select a response,
7 answers
asked by
lasher
52 views
Use the graph to answer the question.
The point A is graphed 4 units to the left and 3 units up from the origin on a complex
2 answers
asked anonymously
55 views
What is the absolute value of 7 + 12i?
(1 point) Responses Start Root 19 End Root Image with alt text: Start Root 19 End Root
2 answers
asked anonymously
30 views
Use the graph to answer the question.
Four points are plotted on a complex plane. Point Q is located 3 units left and 4 units up
2 answers
asked anonymously
71 views
how many solutions does 3i+2i-4=18i
2 answers
asked anonymously
40 views
How many solutions can you get? 3i + 2i - 4 = 18i
2 answers
asked anonymously
39 views
convert root 3 cis (4pi/3) in to rectangular form
3 answers
asked by
p
45 views
Suppose that x = (-1 + i(3^1/2))/2 and y = (-1-i(3^1/2))/2. Which of the following statements is not correct?
(A) x^5 + y^5 = -1
1 answer
asked by
Anonymous
77 views
Four complex numbers lie at the vertices of a square in the complex plane. Three of the numbers are 1+2i,-2+i and -1-2i. What is
2 answers
asked by
m
141 views
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Algebra
Algebraic Equations
Algebraic Expressions
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