運算式 7: left parenthesis, cos left parenthesis, "t" , right parenthesis plus 0.7 3 1 4 times cos left parenthesis, 1.6 2 5 "t" , right parenthesis , sin left parenthesis, "t" , right parenthesis plus 0.7 3 1 4 times sin left parenthesis, 1.6 2 5 "t" , right parenthesis , right parenthesiscost+0.7314·cos1.625t,sint+0.7314·sin1.625t
00
定義域 t 最小值：
less than or equal to "t" less than or equal to≤t≤
定義域 t 最大值： 50.2 6 550.265
7
運算式 8: left parenthesis, cos left parenthesis, "t" , right parenthesis , sin left parenthesis, "t" , right parenthesis , right parenthesiscost,sint
00
定義域 t 最小值：
less than or equal to "t" less than or equal to≤t≤
定義域 t 最大值： 2 pi2π
8
運算式 9: left parenthesis, 1cos left parenthesis, "T" , right parenthesis plus 0.7 3 1 4 times cos left parenthesis, 1.6 2 5 "t" , right parenthesis , sin left parenthesis, "T" , right parenthesis plus 0.7 3 1 4 times sin left parenthesis, 1.6 2 5 "t" , right parenthesis , right parenthesis1cosT+0.7314·cos1.625t,sinT+0.7314·sin1.625t
00
定義域 t 最小值：
less than or equal to "t" less than or equal to≤t≤
定義域 t 最大值： 2 pi2π
9
運算式 10: left parenthesis, 2.5cos left parenthesis, "t" , right parenthesis , 2.5sin left parenthesis, "t" , right parenthesis , right parenthesis2.5cost,2.5sint
00
定義域 t 最小值：
less than or equal to "t" less than or equal to≤t≤
