表达式9: 10 left parenthesis, "y" plus 5 , right parenthesis squared equals left parenthesis, "x" minus "b" plus 0.5 , right parenthesis left brace, "x" less than "b" , right brace left brace, negative 20 less than "x" less than 20 , right brace10y+52=x−b+0.5x<b−20<x<20
9
表达式10: "b" equals 0.7b=0.7
10
表达式11: sine left parenthesis, "a" plus "x" , right parenthesis greater than "y" greater than negative 20 left brace, 20 greater than "x" greater than negative 20 , right bracesina+x>y>−2020>x>−20
11
表达式12: negative "y" greater than 0.1 5 "x" squared minus 15 left brace, StartFraction, sin 5 "x" plus 35 Over 3 , EndFraction greater than "y" greater than sin left parenthesis, "a" plus "x" , right parenthesis , right brace−y>0.15x2−15sin5x+353>y>sina+x
12
表达式13: left parenthesis, "x" plus 15 , right parenthesis squared plus left parenthesis, "y" minus 15 , right parenthesis squared less than 5x+152+y−152<5
13
表达式14: StartFraction, left parenthesis, "x" minus "b" , right parenthesis squared Over 2 , EndFraction plus StartFraction, left parenthesis, "y" plus 5 , right parenthesis squared Over 1 , EndFraction less than 1 left brace, negative 20 less than "x" less than 20 , right bracex−b22+y+521<1−20<x<20
14
表达式15: StartFraction, left parenthesis, "x" minus "b" , right parenthesis squared Over 2 , EndFraction minus StartFraction, 2 left parenthesis, "y" plus 5 , right parenthesis squared Over 1 , EndFraction greater than 1 left brace, negative 20 less than "x" less than 20 , right brace left brace, "b" minus 2.5 less than "x" less than "b" , right bracex−b22−2y+521>1−20<x<20b−2.5<x<b
15
表达式16: left parenthesis, "x" minus "b" minus 1 , right parenthesis squared plus left parenthesis, "y" plus 4.7 , right parenthesis squared less than 0.0 1 left brace, negative 20 less than "x" less than 20 , right bracex−b−12+y+4.72<0.01−20<x<20
