# Finding the equation of tangent

Not what you're looking for?

Find equation of tangent line in cartesian coordinates. Give in polar coordinates:

r=3-2costheta, at theta=pie divided by 3.

##### Purchase this Solution

##### Solution Summary

More than 20 step answer to the question is given to completely understand the process of solving similar questions.

##### Solution Preview

The transformation formulas to cartesian system are

<br>

<br>x = r cos A, y = r sin A

<br>

<br>where we used A instead of theta convenience,

<br>

<br> r = 3-2Cos(A) at A = pi/3

<br>

<br>If A = pi/3,

<br>

<br> r = 3-2cos(pi/3) = 3-(2x0.5) = 3-1= 2 (because Cos 60 = 0.5)

<br>

<br>Now, x = r cos(pi/3) = 2 x 0.5 = ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

##### Probability Quiz

Some questions on probability

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.