Expression 1: "r" equals 16cosine squared left parenthesis, theta , right parenthesis plus 2.8sine squared left parenthesis, theta , right parenthesis plus left parenthesis, StartFraction, 2.4 Over pi , EndFraction , right parenthesis thetar=16cos2θ+2.8sin2θ+2.4πθ
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domain \theta Minimum:
less than or equal to theta less than or equal to≤θ≤