Math CentralQuandaries & Queries


Question from Ray, a student:

Help me pls. I'm confused with the infinity as an upper limit. The problem goes this way:

Determine the area bounded by the x-axis and the curve y=1/(x^2) from x=1 to x=infinity.
A. 1.00
B. infinity
C. indeterminate
D. 2.00


Suppose R is some number larger than 1. Find the integral of 1/x2 from 1 to R. This gives you an expression involving R. Take the limit of this expression as R approaches infinity.


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