Find the area of the shaded region. r=av cos 20

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter10: Measurement, Area, And Volume
Section10.3: Areas Of Parallelograms
Problem 30E
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Find the area of the shaded region.
r=av cos 20
Transcribed Image Text:Find the area of the shaded region. r=av cos 20
Expert Solution
Step 1

The given polar equation is:

r=acos (2θ)

The given region is from θ=-π4 to θ=π4

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