Expression 5: polygon left parenthesis, left parenthesis, negative 1 , 0 , right parenthesis , left parenthesis, cos left parenthesis, "a" plus pi , right parenthesis , sin left parenthesis, "a" plus pi , right parenthesis , right parenthesis , left parenthesis, 0 , negative 1 , right parenthesis , left parenthesis, 0 , 0 , right parenthesis , right parenthesispolygon−1,0,cosa+π,sina+π,0,−1,0,0
5
Expression 6: polygon left parenthesis, left parenthesis, 0 , negative 1 , right parenthesis , left parenthesis, cos left parenthesis, "a" plus StartFraction, 3 pi Over 2 , EndFraction , right parenthesis , sin left parenthesis, "a" plus StartFraction, 3 pi Over 2 , EndFraction , right parenthesis , right parenthesis , left parenthesis, 1 , 0 , right parenthesis , left parenthesis, 0 , 0 , right parenthesis , right parenthesispolygon0,−1,cosa+3π2,sina+3π2,1,0,0,0
6
Expression 7: "y" equals negative 1.5 left brace, negative pi less than "x" less than pi , right bracey=−1.5−π<x<π
7
Expression 8:
8
Hidden Label: left parenthesis, "a" minus pi , negative 1.5 , right parenthesisa−π,−1.5
Label
equals=
left parenthesis, 0.7 9 8 4 0 7 3 5 , negative 1.5 , right parenthesis0.79840735,−1.5