40.1k views
1 vote
Rewrite the parametric equations in Cartesian form x=3cos t, y=-sin t

User Mocky
by
7.7k points

1 Answer

7 votes

Hello from MrBillDoesMath!

Answer:

(x^2)/9 + y^2 = 1


Discussion:

x = 3cost => x/3 = cost

y = sint

Using (sint)^2 + (cos)^2 =1 and substituting the above x and y values gives:


(x/3)^2 + y^2 = (cost)^2 + (sint)^2 = 1 or

(x^2)/9 + y^2 = 1

Thank you,

MrB

User Vitaliy Shibaev
by
8.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories