表达式14: "d" equals "N" StartFraction, "H" plus 1 minus "P" Over "H" plus 1 , EndFractiond=NH+1−PH+1
equals=
300300
14
animation
对学生隐藏该文件夹。
15
表达式16: left parenthesis, "A" cos "t" , "B" sin "t" , right parenthesisAcost,Bsint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 2 pi2π
16
表达式17: left parenthesis, "A" cos "t" , "B" sin "t" , right parenthesis minus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "t" , right parenthesis squared plus left parenthesis, "A" sin "t" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "t" , "A" sin "t" , right parenthesis plus "d" times left parenthesis, cos left parenthesis, "t" StartFraction, "M" minus "N" Over "N" , EndFraction , right parenthesis , negative sin left parenthesis, "t" StartFraction, "M" minus "N" Over "N" , EndFraction , right parenthesis , right parenthesisAcost,Bsint−NBcost2+Asint2Bcost,Asint+d·costM−NN,−sintM−NN
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： "T"T
17
表达式18: left parenthesis, "A" cos "T" , "B" sin "T" , right parenthesis minus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "T" , right parenthesis squared plus left parenthesis, "A" sin "T" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "T" , "A" sin "T" , right parenthesis plus "N" times left parenthesis, cos "t" , sin "t" , right parenthesisAcosT,BsinT−NBcosT2+AsinT2BcosT,AsinT+N·cost,sint
定义域t最小值： 00
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 2 pi2π
18
隐藏 标签 left parenthesis, "A" cos "T" , "B" sin "T" , right parenthesis minus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "T" , right parenthesis squared plus left parenthesis, "A" sin "T" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "T" , "A" sin "T" , right parenthesis plus "d" times left parenthesis, cos left parenthesis, "T" StartFraction, "M" minus "N" Over "N" , EndFraction , right parenthesis , negative sin left parenthesis, "T" StartFraction, "M" minus "N" Over "N" , EndFraction , right parenthesis , right parenthesisAcosT,BsinT−NBcosT2+AsinT2BcosT,AsinT+d·cosTM−NN,−sinTM−NN
标签
19
表达式20: left parenthesis, "A" cos "t" , "B" sin "t" , right parenthesis plus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "t" , right parenthesis squared plus left parenthesis, "A" sin "t" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "t" , "A" sin "t" , right parenthesis minus "d" times left parenthesis, cos left parenthesis, "t" StartFraction, "M" plus "N" Over "N" , EndFraction , right parenthesis , sin left parenthesis, "t" StartFraction, "M" plus "N" Over "N" , EndFraction , right parenthesis , right parenthesisAcost,Bsint+NBcost2+Asint2Bcost,Asint−d·costM+NN,sintM+NN
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： "T"T
20
表达式21: left parenthesis, "A" cos "T" , "B" sin "T" , right parenthesis plus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "T" , right parenthesis squared plus left parenthesis, "A" sin "T" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "T" , "A" sin "T" , right parenthesis plus "N" times left parenthesis, cos "t" , sin "t" , right parenthesisAcosT,BsinT+NBcosT2+AsinT2BcosT,AsinT+N·cost,sint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 2 pi2π
21
隐藏 标签 left parenthesis, "A" cos "T" , "B" sin "T" , right parenthesis plus StartFraction, "N" Over StartRoot, left parenthesis, "B" cos "T" , right parenthesis squared plus left parenthesis, "A" sin "T" , right parenthesis squared , EndRoot , EndFraction left parenthesis, "B" cos "T" , "A" sin "T" , right parenthesis minus "d" times left parenthesis, cos left parenthesis, "T" StartFraction, "M" plus "N" Over "N" , EndFraction , right parenthesis , sin left parenthesis, "T" StartFraction, "M" plus "N" Over "N" , EndFraction , right parenthesis , right parenthesisAcosT,BsinT+NBcosT2+AsinT2BcosT,AsinT−d·cosTM+NN,sinTM+NN
