Expression 2: "r" equals 3 minus StartFraction, 4sin left parenthesis, theta , right parenthesis minus cos left parenthesis, 2 theta , right parenthesis Over 1.6 plus cos left parenthesis, 2 theta , right parenthesis plus StartRoot, StartAbsoluteValue, cos left parenthesis, theta , right parenthesis , EndAbsoluteValue Superscript, 1.3 , Baseline , EndRoot , EndFraction plus StartFraction, 3cos left parenthesis, 2 theta , right parenthesis Over 2.5 minus sin left parenthesis, theta , right parenthesis , EndFraction minus sine left parenthesis, theta , right parenthesisr=3−4sinθ−cos2θ1.6+cos2θ+cosθ1.3+3cos2θ2.5−sinθ−sinθ
00
domain \theta Minimum:
less than or equal to theta less than or equal to≤θ≤
21602160
domain \theta Maximum:
2
Expression 3: "r" equals StartFraction, sin left parenthesis, theta , right parenthesis StartRoot, left parenthesis, StartAbsoluteValue, cos theta , EndAbsoluteValue , right parenthesis , EndRoot Over sin theta plus 7 fifths , EndFraction minus 2sine left parenthesis, theta , right parenthesis plus 2r=sinθcosθsinθ+75−2sinθ+2
00
domain \theta Minimum:
less than or equal to theta less than or equal to≤θ≤