<u>ANSWER</u>
<u>EXPLANATION</u>
The Cartesian equation is
We substitute
and
This implies that
Let us evaluate the exponents to get:
Factor the RHS to get:
Divide through by r²
Apply the double angle identity
The polar equation then becomes:
The base of a solid is a circle with radius 5. The cross sections of the solid perpendicular to a fixed diameter of the base are
squares. If the circle is centered at the origin and the cross sections are perpendicular to the x-axis, find the area A(x) of the cross section at x.
1 answer:
You might be interested in