kawwiaalovera10 kawwiaalovera10
  • 07-05-2021
  • Mathematics
contestada

rewrite the rectangular equation x^2+y^2-8y=0 as a polar equation

Respuesta :

forealjohnson0
forealjohnson0 forealjohnson0
  • 07-05-2021

Answer:

We'll use the following identities:

r = √(x2 + y2), from which we also have r2 = x2 + y2

y = r*sinθ

First, let's re-write your equation:

r = 8*sin(θ).  Multiply both sides by r:

r2 = 8r sin(θ)

Now, we'll use substitute using the identities:

x2 + y2 = 8y

Re-arrange and complete the square:

x2 + y2 - 8y = 0

x2 + (y-4)2 - 16 = 0

x2 + (y-4)2 = 16

This represents a circle with center (0,4), and radius 4.

Step-by-step explanation:

sorry if it wrong

Answer Link

Otras preguntas

Bach lived and worked in
The number of times a root/solution occurs in a problem?
What is the answer to
consider the infinite geometric series infinity sigma n=1 -4(1/3)^n-1. In this, the lower limit of the summation notion is "n=1". a. Write the first four terms
Jamin wants to paint a wall in his bedroom. In order to know how much paint to buy, he first needs to know the approximate area. There is a window in the middle
Family of seven book a holiday, two of the seven want to go on an activity whats the fraction
f(n) = f(n – 1) + f(n – 2); f(1) = 2; f(2) = 1. Find the 12th term.
I NEED HELP PLEASE: Lenny is a general manager of a large department store chain. This week he has decided to offer 33% off any item in the store. Find the tota
Why is diction important?
Write out a script for a healthy eating add, like how it will go