215 Answered Questions for the topic Complex Numbers

Complex Numbers Math Precalculus

09/14/21

find two complex numbers who have a sum of 14 and a product of 74.
isn't it 7+i and 7-i? i am so confused...
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Complex Numbers Math

09/14/21

What are the four roots of -\frac{1}{2}+\frac{1}{2}\sqrt{3}i
Hei! I'm not entirely sure how to solve this. I need to find all 4 roots in exponential form. So far I've written the complex number in exponential form. e^{\frac{2\pi}{3}}
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Complex Numbers Differential Equations

08/27/21

How to convert complex numbers to polar form.
z=4e^(i1.7)Write the following numbers in polar form reiθ, 0≤θ<2π:a) z¯r=θ=b) 1/zr=θ=So, I have r for both of these (4 and .25). I need the angles. I thought b) would be -1.7, but that was... more
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06/27/21

List all of the fourth roots of 9/2((sqrt3)-i) from least to greatest in order of principal values
(cos + i sin ) (cos + i sin ) (cos + i sin ) (cos + i sin )
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Complex Numbers Precalculus

05/13/21

How do you find all 6th roots of 64+0i (in both trig and standard form)?
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Complex Numbers Trigonometry

03/26/21

(NEEDED ASAP) If z = 2 + 10i then calculate 4Re(z) + 6lm(z)
4Re(z) + 6lm(z) =
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Complex Numbers Trigonometry

03/26/21

(NEEDED ASAP) If z = 2 + i then find lm(z).
lm(z) =
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Complex Numbers Algebra 2

03/21/21

Complex Numbers
Find the product of the two numbers, (7+2i) and (3+5i). Plot this point on your graph and find the magnitude and direction of the product. a. What relationship do you notice between the magnitude... more
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03/10/21

a)what is the number of complex roots b)possible number of real positive and real negative roots C) possible number of rational roots for the equation x^4+x^3-4x^2+2x-5=0
number of complex roots includes real roots and imaginary roots
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Complex Numbers Calculus

02/09/21

Evalaute contour integral
Evaluate the contour integral [(z+3)/(z)(z-1)^2 (z-2)]dz where c is the circle |z|=5/2 by using the residue theorem.What would be the final answer?
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Complex Numbers Algebra

02/06/21

factor .. . .. . . .
Factor: 8a^2+16b^2...............
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Complex Numbers Algebra 2

02/06/21

Find the solutions of the equation, and find the sum and the product of the roots:
Find the solutions of the equation, and find the sum and the product of the roots: 4x^2-12x+15=0
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Complex Numbers Algebra 2

02/06/21

How many terms of the series 25+19+13 +… are required to make the sum −20?
How many terms of the series 25+19+13 +… are required to make the sum −20?
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Complex Numbers Algebra 2

02/06/21

How many terms of the series 25+19+13 +… are required to make the sum −20?
How many terms of the series 25+19+13 +… are required to make the sum −20?
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Complex Numbers Algebra 2

02/06/21

How many terms of the series 25+19+13 +… are required to make the sum −20?
How many terms of the series 25+19+13 +… are required to make the sum −20?
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Complex Numbers Algebra 2

02/06/21

How many terms of the series 25+19+13 +… are required to make the sum −20?
How many terms of the series 25+19+13 +… are required to make the sum −20?
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Complex Numbers Calculus

01/24/21

Question related to Complex Analysis
z^6 - 2z^3 - 8 = 0 using Polar Form and De Moivre theorem
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Complex Numbers Precalculus

01/05/21

Find all the zeros of f(x)=x3−6x2+25x−68 given that 1−4i is a zero.
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Complex Numbers Algebra 2 Polynomials

12/31/20

Find a polynomial equation with real coefficients that has the given roots. 4 and -9i (imaginary)
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Complex Numbers Math Algebra 1 Algebra 2

12/29/20

How would you solve this equation? Thanks for your help. Greatly Appreciated.
12x2-18 = -150
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Complex Numbers Trigonometry Algebra

11/12/20

What are the three cube roots of -8i? i = √-1
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Complex Numbers Linear Algebra

10/23/20

determine the complex solutions of the equation
(z+4)3 = -8i
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Complex Numbers Linear Algebra

10/23/20

determine the complex solutions of the equation
(z+4)3 = -8i
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Complex Numbers Math Polar Expression

10/08/20

Find the polar expression of i and -1
the title is everything, the question is Find the polar expression of i and -1
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Complex Numbers Algebra 2

10/08/20

Algebra Question
Simplify, leaving answer in polar form.cos(5A) - i sin(5A) / i sin(B) + cos(B)(division)
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