Expression 5: "x" equals 3 left brace, 1.2 less than or equal to "y" less than or equal to 2 , right brace Has graph. To audio trace, press ALT+T.x=31.2≤y≤2
5
Expression 6: "y" equals 2 left brace, 2 less than or equal to "x" less than or equal to 3 , right brace Has graph. To audio trace, press ALT+T.y=22≤x≤3
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Expression 7: "y" equals 1.2 left brace, 2 less than or equal to "x" less than or equal to 3 , right brace Has graph. To audio trace, press ALT+T.y=1.22≤x≤3
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n(t) left parenthesis, 2.2 , 1.8 , right parenthesis Has graph. To audio trace, press ALT+T.2.2,1.8
Label:
8
σ(t) left parenthesis, 2.2 , 1.5 , right parenthesis Has graph. To audio trace, press ALT+T.2.2,1.5