1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ruslelena [56]
3 years ago
5

NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!! PLEASE explain thoroughly. Chapter 16

Mathematics
1 answer:
kow [346]3 years ago
4 0

9514 1404 393

Answer:

  1. complex plane; (cos(θ)+i·sin(θ))^n = cos(nθ) +i·sin(nθ)
  2. relationship between parameter and coordinates
  3. basically: (x, y) = (r·cos(θ), r·sin(θ)); can be solved for r, θ

Step-by-step explanation:

1. de Moivre's theorem (or identity) states that ...

  (\cos(\theta)+i\sin(\theta))^n=\cos(n\theta)+i\sin(n\theta)

It is a statement about powers of complex numbers, so is related to the complex plane.

__

2. To graph a parametric equation, you need to know the relationship between the parameter and the coordinates you want to graph.

__

3. Here are the relationships:

  (x, y) = (r·cos(θ), r·sin(θ))

  (r, θ) = (√(x² +y²), arctan(y/x)) . . . with attention to quadrant

You might be interested in
A hotel manager is buying wallpaper for the rooms in his
Temka [501]
The manger purchased 116 rolls of wallpaper. (5,568/48)
5 0
2 years ago
Read 2 more answers
What is the unit rate for 640miles in 25hourd
Alja [10]

Answer:

Hi there, we are going to set up a proportion. 640 miles/25 hours ÷ 25/25. That would equal 25.6 miles/1 hours. Therefore, the answer is 25.6 miles per hour.

Step-by-step explanation:

PLZZ MARK BRAINLIEST THAT WILL MEAN SOOO MUCH TO ME

7 0
2 years ago
Read 2 more answers
Find the equation of the tangent line to the curve <br> 2exy=x+y at (0,2).
DiKsa [7]

Answer:

The equation of the tangent line to the curve

3 x - y = 2

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given function  = f(x,y) = 2e^{xy} -x-y=0   ...(i)

Differentiating equation (i) with respective to 'x' , we get

2 e^{xy} \frac{d}{d x} (x y) -1 -\frac{dy}{dx} =0

apply  formula

\frac{d}{dx} (UV) = UV^{l} +V U^{l}

<u><em>step(ii):-</em></u>

⇒   2 e^{xy} (x(\frac{d}{d x} ( y))+y(1)) -1 -\frac{dy}{dx} =0

⇒ 2 e^{xy} (x(\frac{d}{d x} ( y))+ 2e^{xy} y(1)) -1 -\frac{dy}{dx} =0

Taking common d y/d x

(2 e^{xy} (x) -1)\frac{dy}{dx} =1- 2e^{x y} y(1))

\frac{dy}{dx} =\frac{1- 2e^{x y} y(1))}{(2 e^{xy} (x) -1)}

put At (0,2)

\frac{dy}{dx} =\frac{1- 2e^{0} 2(1))}{(2 e^{0} (0) -1)}=\frac{1-4}{-1} =3

slope of the curve m = 3

<u><em>Step(iii)</em></u>:-

The equation of the tangent line to the curve

y-y_{1} =m(x-x_{1} )

y - 2 = 3 ( x - 0 )

3 x - y = 2

<u><em>Final answer:-</em></u>

The equation of the tangent line to the curve

3 x - y = 2

8 0
2 years ago
Please help I will give brainly
Aleks04 [339]

ok so the easy way is this

Marc says he will have 20 if he doubles his cards.

if u divide 20 by 2 = 10

but His friend gave him 3 cards before.which means that

10-3 = 7

He started with 7 cards

I answered b and c.

5 0
3 years ago
Read 2 more answers
In a class, 10 out of 25 students ride the bus. What percent of students ride the bus?
WITCHER [35]

Answer:

25%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the polynomial expression given below.<br><br> (2x − 1)(2x2 + 5x + 3) + (3x + 6)
    9·2 answers
  • What’s 2 to the power of 3
    10·2 answers
  • The house numbers on the north side of Flynn Street are even. In one block, the house numbers begin 1022, 1032, 1042, and 1052.
    6·1 answer
  • What is the equation of this line?<br> •y=-1/2x<br> •y=1/2x<br> •y=-2x<br> •y=2x
    8·1 answer
  • The circumference of the base of a cylinder is 24π mm. A similar cylinder has a base with circumference of 60π mm. The lateral a
    5·2 answers
  • A triangle has 2 congruent sides and 1 right angle.What is the triangle? List all that apply.
    14·1 answer
  • After 5 years, a $2,450 investment is worth $3,123.75.
    12·1 answer
  • 49n² − 56n + 16<br> Solve this PLZ
    12·2 answers
  • In the figure, j∥k and m∠1 = 63°.
    11·2 answers
  • Find the value show your work <br><br>(-4^2)+5)(-4^2)-(-4)+2)-3​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!