Question: Graph the limaons. Limaon (lee-ma-sahn) is Old French for snail. You will understand the name when you graph the limaons in Exercise 21. Equations for

Graph the limaçons. Limaçon (“lee-ma-sahn”) is Old French for “snail.” You will understand the name when you graph the limaçons in Exercise 21. Equations for limaçons have the form r = a ± b cos θ or r = a ± b sin θ. There are four basic shapes.


a. r = 1 - cos θ


b. r = -1 + sin θ



Exercise 21


a.r || 1 2 + cos 0


b.image

r || 1 2 + cos 0

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