Precalculus Solutions | Expert Assistance for Problems & Examples

punniya.v 2022-01-19

please provide answer for this question

punniya.v 2022-01-19

please provide answer for this question Show that the vector field by ⃗= (x^2+4yz)̂+ (y^2+4zx)̂+ (z^2+4xy) ̂ is irrotational. Hence find the scalar potential.

Sandra Allison 2022-01-18

Graph the complex numbers in the complex plane.
a) $- 1 + 3 i$
b) $- 4 - 5 i$
c) 3
d) 4i

kerrum75 2022-01-18

Find the quotient $\frac{z_{1}}{z_{2}}$ of the complex numbers.Leave answers in polar form.Express the argument as an angle between $0^{\circ}$ and $360^{\circ}$ .
$z_{1} = {\cos 70}^{\circ} + i {\sin 70}^{\circ}$
$z_{2} = {\cos 230}^{\circ} + i {\sin 230}^{\circ}$

agreseza 2022-01-18

Determine whether the statement When I add or subtract complex numbers, I am basically combining like terms., makes sense or does not make sense, and explain your reasoning.

Bobbie Comstock 2022-01-18

What is the largest integer $n < 0$ so that ${(\frac{1 + \sqrt{3}}{3} i)}^{n}$ is purely imaginary?

Mary Buchanan 2022-01-18

How can we find z when the complex number Z satisfies the equation $4 z 3 \overset{―}{z} = (\frac{1 - 8 i}{2 - i})$ ,where $\overset{―}{z}$ is the complex conjugate of z?

Joyce Smith 2022-01-18

If $\frac{z - 1}{z + 1}$ is purely an imaginary number and is not equal to -1, then what is the value of the modulus of z?

Pamela Meyer 2022-01-18

Is there any example of a real world phenomenon modelled as $x^{2} + 1 = 0$ , (or even a cubic equation) based on which Complex numbers were invented? What is the physical quantity which is square of itself and when added with 1 can become zero.

Carol Valentine 2022-01-18

If x and y are real what is the complex conjugate z when: $ \frac{x + i y + 1}{x + i y}$ ? I tried to tidy up the $\frac{1}{x + i y}$ to get $\frac{x - i y}{x^{2} - y^{2}}$ , multiply it out etc but still just no cigar.

kihanja20 2022-01-18

What is the complex function of $f (z) = \frac{1}{z}$ ?

kihanja20 2022-01-18

What is the sum of this imaginary number series problem:
$i + 2 i^{2} + 3 i^{3} + 4 i^{4} + 5 i^{5} + \dots + 2002 i^{2002}$ ?

Jean Blumer 2022-01-18

How do you simplify $- 9 - 9 i \div - 1 - 8 i$ ?

Brock Brown 2022-01-18

How do you divide $\frac{- 2 - 5 i}{3 i}$ ?

sputneyoh 2022-01-18

How do you simplify $\frac{7 i}{8 + i}$ ?

Joan Thompson 2022-01-18

How do I find the complex conjugate of $\frac{12}{5 i}$ ?

Danelle Albright 2022-01-18

How do you simplify ${(- i)}^{3}$ ?

Precalculus problems and solutions are hard to find online even though this topic is quite popular among college students majoring in Engineering. Keeping this fact in mind, we decided to provide you with a list of questions and answers that will help you with various precalculus problems. Regardless if it is related to equations or any other problem, these precalculus problems and composite functions examples and solutions below will help you see the logic and compare solutions as you check your original task.

Precalculus

(y) = In(x^2) at the point where x = e.

find and sketch the domain of the function f(x,y)= x/x^2+y^2

2xy^2+4=2(3-x^2y)y' y(-1)=8