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wajed
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I`m reading on Integrals, and at the introductions author mentions three basic concepts, The Rectangle Property, The Addition Property, and The Comparison Property.
I understand what the 1st and 3rd properties mean, and I have a question concerning the 2nd.
"The Adittion Property: The area of a region composed of several smaller regions that overlap in at most a line segment is the sum of areas of the smaller regions."
I don`t understand what that part in red means??
I don`t understand what "overlap" means, nor do I understand what "in at most a line segment" means?
Thanx in advance
I understand what the 1st and 3rd properties mean, and I have a question concerning the 2nd.
"The Adittion Property: The area of a region composed of several smaller regions that overlap in at most a line segment is the sum of areas of the smaller regions."
I don`t understand what that part in red means??
I don`t understand what "overlap" means, nor do I understand what "in at most a line segment" means?
Thanx in advance