- #1
naaa00
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Homework Statement
Well, the problem is to find the area of:
{(x,y), -(pi/2) <= x <= Pi/2, 1/2< y <=cosx}
The Attempt at a Solution
Well, I know that for an angle of 60 degrees, the cosine is 1/2. So I guess that the limits of my integral will be from 0 to Pi/3.
But I'm getting confused with the domain of x: for 270, and 90 degrees... So on the graph of cosine, and considering the condition of 1/2< y <=cosx = 1, it seems to me that the only point of intersection between the condition and the cosine graph is just a small piece of the cosine graph. So after I evaluate the inegral I got sqrt(3)/2.
I think my answer is wrong. Any suggestions please?