表达式8: left parenthesis, "x" minus 2cos left parenthesis, "u" , right parenthesis , right parenthesis squared plus left parenthesis, "y" minus 2sin left parenthesis, "u" , right parenthesis , right parenthesis squared equals 1 有图表。 要进行音频跟踪，按“Alt 键 + T”。x−2cosu2+y−2sinu2=1
8
隐藏 标签 left parenthesis, 2cos left parenthesis, "u" , right parenthesis , 2sin left parenthesis, "u" , right parenthesis , right parenthesis2cosu,2sinu
表达式10: left parenthesis, 2 "t" cos left parenthesis, "u" , right parenthesis , 2 "t" sin left parenthesis, "u" , right parenthesis , right parenthesis 有图表。2tcosu,2tsinu
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
10
表达式11: left parenthesis, "x" minus 1 half , right parenthesis squared plus "y" squared equals 27 quarters 有图表。 要进行音频跟踪，按“Alt 键 + T”。x−122+y2=274
11
円の中心 left parenthesis, 1 half , 0 , right parenthesis equals left parenthesis, 0.5 , 0 , right parenthesis 有图表。 要进行音频跟踪，按“Alt 键 + T”。12,0
标签:
equals=
left parenthesis, 0.5 , 0 , right parenthesis0.5,0
12
隐藏 标签 left parenthesis, negative 1 , 0 , right parenthesis−1,0
