表达式9: left parenthesis, negative 4 plus "f" left parenthesis, 15mod left parenthesis, "t" , 1 , right parenthesis , right parenthesis cos left parenthesis, "A" left parenthesis, "t" , right parenthesis , right parenthesis , "f" left parenthesis, 15mod left parenthesis, "t" , 1 , right parenthesis , right parenthesis sin left parenthesis, "A" left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesis−4+f15modt,1cosAt,f15modt,1sinAt
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： 160160
9
表达式10: left parenthesis, "x" plus 4 , right parenthesis squared less than or equal to .1 2 squared left brace, 1.5 5 less than or equal to negative "y" less than or equal to 3 , right bracex+42≤.1221.55≤−y≤3
10
表达式11: left parenthesis, negative left parenthesis, "x" plus 4 , right parenthesis sin left parenthesis, "a" , right parenthesis plus "y" cos left parenthesis, "a" , right parenthesis , right parenthesis squared less than or equal to .1 2 squared−x+4sina+ycosa2≤.122
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表达式12: left parenthesis, left parenthesis, "x" plus 4 , right parenthesis sin left parenthesis, "a" , right parenthesis plus "y" cos left parenthesis, "a" , right parenthesis , right parenthesis squared less than or equal to .1 2 squaredx+4sina+ycosa2≤.122
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表达式13: "a" equals 1.4 9a=1.49
00
3.1 4 1 63.1416
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表达式14: negative sine left parenthesis, "a" , right parenthesis left parenthesis, "x" plus 4 , right parenthesis plus cosine left parenthesis, "a" , right parenthesis "y" equals .1 2sine left parenthesis, 800 "y" , right parenthesis left brace, 1.5 5 squared less than or equal to left parenthesis, "x" plus 4 , right parenthesis squared plus "y" squared less than or equal to 3 squared , right brace−sinax+4+cosay=.12sin800y1.552≤x+42+y2≤32
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表达式15: "R" Subscript, "f" , Baseline left parenthesis, "t" , right parenthesis equals StartFraction, floor left parenthesis, "t" , right parenthesis Over 200 , EndFractionRft=floort200
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表达式16: left parenthesis, negative 4 plus left parenthesis, 3 plus "R" Subscript, "f" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis cos left parenthesis, 2 pi "t" , right parenthesis , left parenthesis, 3 plus "R" Subscript, "f" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis sin left parenthesis, 2 pi "t" , right parenthesis , right parenthesis−4+3+Rftcos2πt,3+Rftsin2πt
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： 5050
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表达式17: left parenthesis, negative 4 plus left parenthesis, 1.5 5 minus "R" Subscript, "f" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis cos left parenthesis, 2 pi "t" , right parenthesis , left parenthesis, 1.5 5 minus "R" Subscript, "f" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis sin left parenthesis, 2 pi "t" , right parenthesis , right parenthesis−4+1.55−Rftcos2πt,1.55−Rftsin2πt
定义域t最小值： 00
less than or equal to "t" less than or equal to≤t≤
