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posted by leess .
The region R, is bounded by the graphs of x = 5/3 y and the curve C given by x = (1+y^2)^(1/2), and the xaxis.
a) Set up and evaluate an integral expression with respect to y that gives the area of R.
b) Curve C is part of the curve x^2  y^2 = 1, Show that x^2  y^2 = 1 can be written as the polar equation r^2 = 1/(cos^2è  sin^2è).
c) Use the polar equation given in part b) to set up an integral expression with respect to theta that represents the area of R.
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