/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q 8. Identify the conic that each pol... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Identify the conic that each polar equation represents. Also, give the position of the directrix.

r=31-sin(θ)

Short Answer

Expert verified

This polar equation is a parabola.

The equation of directrix isy=-3

Step by step solution

01

Step 1. Given information

The polar equation is

r=31-sin(θ)

02

Step 2. Finding e and d

The polar equation is

r=31-sin(θ)

Compare with the standard polar equation

role="math" localid="1647085546390" r=ed1-esin(θ)

So,

ed=3e=1

Find d

1×d=3d=3

03

Step 3. Identify the conic equation

We have got

e=1

So, this is a parabola equation.

04

Step 4. Finding the directrix equation

The formula for the directrix equation is

y=-d

Plug d=3

So, the directrix equation isy=-3.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Study anywhere. Anytime. Across all devices.