TRIGONOMETRY

posted by .

Can you please help me with this question on my study guide for my trig final? Thanks! I'd also appreciate if you can check out my other postings and check my work for some other study guide questions. I want to make sure I'm ready for my final. :)


4. Transform each polar equation to an equation in rectangular coordinates and identify its shape.
a. r = 6
b. r = 2cosθ
Answer:

  • TRIGONOMETRY -

    r=6 is just a circle of radius 6
    x^2+y^2 = r^2

    This is also a circle, but shifted along the x-axis:

    r = 2cosθ
    r^2 = 2rcosθ
    x^2+y^2 = 2x
    x^2-2x+1 + y^2 = 1
    (x-1)^2 + y^2 = 1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    My final exam is coming up so I am doing study guides to help me practice. I would really appreciate any help that is given. 1. The hydronium ion concentration for a solution is determined to be 4.5 x 10^-7 M. What is the concentration …
  2. TRIGONOMETRY

    Can you please help me with this question on my study guide for my trig final?
  3. TRIGONOMETRY

    Can you check my work, please? This is for a trig study guide for my final next week. I'd like to know if I'm doing this right. :) 2. The polar coordinates of a point are given. Find the rectangular coordinates of each point. a. (5,(π
  4. TRIGONOMETRY

    Can someone please show me step by step how to calculate the modulus and the argument for these complex numbers?
  5. Civics to Ms.Sue

    Ms.Sue can you check my questions below I like when you check them and suggest what's best. I just need to finish this study guide so I can start studying on the right questions and not on the wrong ones.
  6. probs & stats

    A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not give the other 200 students a study guide and their average score was 70 with a standard deviation of 8. …
  7. Math

    My professor gave our class a study guide for our midterm. On that study guide, there were 10 prompts he wanted us to know. Out of the 10, there were 3 prompts that I wasn't confident in. For the midterm, he picked 5 prompts out of …
  8. Statistics

    10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not give the other 200 students a study guide and their average score was 70 with a standard deviation of …
  9. Statistics

    10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not give the other 200 students a study guide and their average score was 70 with a standard deviation of …
  10. Study Guide

    Does anyone know where I could find an online or PDF version of the Holt Biology 2004 study guide?

More Similar Questions