表达式11: "y" equals negative 3 left brace, negative 4.7 5 5 less than "x" less than 4.7 5 5 , right brace 有图表。 要进行音频跟踪,按“Alt 键 + T”。y=−3−4.755<x<4.755
11
表达式12: left parenthesis, Start sum from "n" equals 1 to "b" , end sum, StartFraction, left parenthesis, negative 1 , right parenthesis Superscript, left parenthesis, "n" plus 1 , right parenthesis , Baseline left parenthesis, negative StartAbsoluteValue, "x" , EndAbsoluteValue , right parenthesis Superscript, left parenthesis, 2 "n" minus 1 , right parenthesis , Baseline Over left parenthesis, 2 "n" minus 1 , right parenthesis ! , EndFraction , right parenthesis plus "a" minus 1 left brace, negative StartFraction, 7 Over 10 , EndFraction "b" less than "x" less than StartFraction, 7 Over 10 , EndFraction "b" , right brace 有图表。 要进行音频跟踪,按“Alt 键 + T”。b∑n=1−1n+1−x2n−12n−1!+a−1−710b<x<710b
12
表达式13: "b" equals 0.1b=0.1
0.10.1
88
13
表达式14: 4 left parenthesis, "x" plus 2.5 , right parenthesis squared plus 40 "b" left parenthesis, "y" minus 1.2 minus "a" , right parenthesis squared less than .5 有图表。 要进行音频跟踪,按“Alt 键 + T”。4x+2.52+40by−1.2−a2<.5
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表达式15: 4 left parenthesis, "x" minus 2.5 , right parenthesis squared plus 40 "b" left parenthesis, "y" minus 1.2 minus "a" , right parenthesis squared less than .5 有图表。 要进行音频跟踪,按“Alt 键 + T”。4x−2.52+40by−1.2−a2<.5
15
表达式16: negative 2 StartRoot, negative "y" , EndRoot less than "x" less than 2 StartRoot, negative "y" , EndRoot left brace, "y" less than negative 3 , right brace 有图表。 要进行音频跟踪,按“Alt 键 + T”。−2−y<x<2−yy<−3