Expression 6: "a" equals StartFraction, pi "H" Over 180 , EndFraction equals 0a=πH180
equals=
00
6
Expression 7: "y" Subscript, 1 , Baseline equals "r" Subscript, 1 , Baseline sine left parenthesis, "a" , right parenthesis equals 0y1=r1sina
equals=
00
7
Expression 8: "x" Subscript, 1 , Baseline equals "r" Subscript, 1 , Baseline cosine left parenthesis, "a" , right parenthesis equals 4x1=r1cosa
equals=
44
8
Expression 9: left parenthesis, "x" minus "x" Subscript, 1 , Baseline , right parenthesis squared plus left parenthesis, "y" minus "y" Subscript, 1 , Baseline , right parenthesis squared less than or equal to "r" Subscript, 1 , Baseline Has graph. To audio trace, press ALT+T.x−x12+y−y12≤r1
9
${H} left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , right parenthesis equals left parenthesis, 4 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.x1,y1
Label:
equals=
left parenthesis, 4 , 0 , right parenthesis4,0
10
Expression 11: "y" equals "x" tangent left parenthesis, "a" , right parenthesis left brace, 0 less than or equal to "x" less than or equal to "x" Subscript, 1 , Baseline , right brace Has graph. To audio trace, press ALT+T.y=xtana0≤x≤x1
11
Expression 12: "y" equals "x" tangent left parenthesis, "a" , right parenthesis left brace, "x" Subscript, 1 , Baseline less than or equal to "x" less than or equal to 0 , right brace Has graph.y=xtanax1≤x≤0