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\vtop{\hsize=3.75in \noindent {\bf Problem statement} Suppose that $T$
is the triangular region shown with vertices at $(0,0)$, $(0,1)$, and
$(1,1)$.

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\noindent a) Describe $T$ using polar coordinates.

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\noindent b) Compute the area of $T$ using integration in polar
coordinates.

}

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