35 Answered Questions for the topic Imaginary Numbers

Imaginary Numbers Electrical Engineering

03/28/22

X = 3ej0.2π + 8ej0.8π
Determine the imaginary portion of the complex number, X.X = 3ej0.2π + 8ej0.8π
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Imaginary Numbers Algebra 2 Polynomials Standard Form

04/08/21

Write an equation in standard form that uses the following zeros x = 3, -1, 2i
i cant figure out the answer to this, its alg 2
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09/20/20

Complex numbers problem, solving for Z1 and Z2
If Z1,Z2 are part of C such that Im(z1) = sqrt(3), |z2| = 2 and z1*z2 = 4(cos( 5pi/6 ) + sin( 5pi/6)i ). Find the values of Z1 and Z2.I was told that i could use the property of |z1*z2| = |z1||z2|... more
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Imaginary Numbers Math Algebra 2 Equation

11/21/19

Imaginary numbers

Find the values of x and y that satisfy the equation 14x - 64i = 42 + yi
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Imaginary Numbers Math

01/14/19

What does i^4b+3?
Please explain how you got that answer
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Imaginary Numbers Complex Numbers Locii Argan Diagram

01/22/18

Need help with complex numbers and locus
part1. Let z=rcisθ where 0<θ<pi. show that Arg(z^2)=2θ.   part2. sketch the region defined by {z: Arg(z^2)>pi/2} in the answers it shows region pi/4 to pi/2 and region 5pi/8 to 3pi/2... more
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10/08/17

Complex number to exponential form
How do you put the complex number  -2+i  into a form of  e^{ix} ?        with i = sqrt(-1)               x= angle between complex number and the real axis
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Imaginary Numbers

09/21/17

i^-9 is this equal to i ? " i^-9 = i " <---- like that ??
i that right????????
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Imaginary Numbers Complex Numbers Radicals

09/16/17

In a complex number would you put i in front of or after a radical? I've seen it written both ways and I'm very confused
imaginary numbers. complex numbers.radicals. order in a solution
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Imaginary Numbers

05/25/17

the zero of imaginary numbers.
So generally 2 the power of 0 equals 1. same goes for 3 and 4 and so on. You know what I mean. So what is zero in the imaginary dimesion? i is the first of the imaginry numbers, like 1 is in the... more
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Imaginary Numbers Precalculus De Moivre's Theorem

04/24/17

Pre calculus- De moivre's Theorem
Find the indicated power using De Moivre's Theorem. (Express your fully simplified answer in the form a + bi.) ((sqrt)3 - i)^6
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01/16/17

What is the relation between the set of complex numbers, the imaginary numbers, and the real numbers?
 What is the relation between the set of complex numbers, the imaginary numbers, and the real numbers? 
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Imaginary Numbers Precalculus Coefficients Math Help

01/09/17

find the real solution for each equation? find the remaining zeros of the polynomial?
3x^3+4x^2−7x+2=0   x^4+8x^3+6x^2−5x+14=0   a polynomial has real coefficients. the degree is 4. two zeros are i and 9+i. 
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Imaginary Numbers Square Roots

11/10/16

Imaginary number problem
Is 3i the fifth root of -243i? Justify please. 
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Imaginary Numbers

09/12/16

imaginary numbers and equations
8+(x+2y)i=x+2i I need to find the value of x and y, assuming they are both real numbers. How do I go about solving this? Thanks!
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Imaginary Numbers Math Complex Numbers Mathematics

06/29/16

Find x and y in complex numbers
(x+yi)4=-7-24I Find x and y  In complex numbers
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Imaginary Numbers Math Algebra Mathematics

05/24/16

Evaluate these powers of i
Evaluate these powers of i.If there is an imaginary part,be sure to enter your answer in a+bi form,where both a and b are real numbers   i1113   i-147
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Imaginary Numbers Division Subtraction Addition

05/17/16

How can simplify this and did i do this correctly: (30/100i-75)(10-6i/6i-8)?
the above is what I got from (4-2i)/(-10+5i) multiplied by (3-i)/(-3+i) written as equation/equation x equation/equation thank you for any help
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05/17/16

how do you properly distribute 1/3(1-3i)?
it is apart of 3i+[1/2]-[1/3](1-3i)+2
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Imaginary Numbers

03/07/16

How to Simplifiy? THANKS
(3i)(6i^2) ( have to simplifiy) Not good with imaginary numbers:( Thanks again
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Imaginary Numbers Polynomial Functions Nth Terms

12/07/15

Find an nth degree polynomial with real coefficients satisfying the given conditions
n = 3   -4 and 2i are zeros    f(-1) = -45   Find the expanded and simplified polynomial    
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Imaginary Numbers Quadratics

11/22/15

solve using quadratic formula x^2-3x+5=0
wHAT WOULD BE THE ANSWER FOR THIS EQUATION USING SOME RULES OF IMAGINARY NUMBERS. IT WILL BE ALRIGHT IF ANSWER WILL BE IN FRACTION. PLEASE SOLVE AND TELL ME THE ANSWER AND BRIEF DESCRIPTION OF... more
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Imaginary Numbers Equations Real Numbers Non Linear

09/23/15

Solving nonlinear equations for both real and imaginary numbers
9x^4-28x^2+3=0
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09/16/15

How do i get to the correct answer 62/949 + 297/949i
the problem 55.  i/(3-2i) + 2i/(3+8i)   my procedure: (i(3+8i) + 2i(3-2i))/ ((3-2i)(3+8i))   (3i-8+6i+4)/(9+24i-6i+16)   (9i-4)/(25+18i)
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Imaginary Numbers

09/15/15

Perform the indicated multiplications
(2+i)(-3-3i)                         and                            (2-4i)(1-5i)
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