00:01
In this problem, we have two questions.
00:03
So in the first one, you are going to find the area of the region that lies inside both of the following curves.
00:13
So r equal to 3 plus 2 cosine theta and r equal to 3 plus 2 sine theta.
00:27
So let us begin with the plots of these functions.
00:33
I have just plotted them over here so let me work right over here.
00:43
So this is the blue line is the first curve and the orange line is the second curve.
00:50
And here is the region of interest.
00:54
We are going to do it as follows.
00:56
First, we will identify these angles of intersection.
01:04
So this is theta1 and this is theta2.
01:14
Or we can also measure it from here but with a negative sign.
01:19
Okay, so these angles are the solutions of the equation 3 plus 2 cosine theta equal to 3 plus 2 sine theta.
01:35
So we have lots of cancellations here...