Simple Polar Inequalities Examples
Example 1
Write inequalities for r and θ describing the shaded region. 
Example 2
Write inequalities for r and θ describing the shaded region.

Example 3
Sketch the region described by the inequalities π ≤ θ ≤ 2π and 1 ≤ r ≤ 2. 
Example 4
Sketch the region described by the inequality r > 2. 
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