Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §9.3 Slope, Length, and Area for Polar Curves, #10 · Calculus · Parametric & polar

lemniscate … outside

Find the area between the curves after locating their intersections (draw them first).

lemniscate $r^{2} = 4 cos 2 θ$ outside $r = 2$

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §9.3 Slope, Length, and Area for Polar Curves, #10

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