Expression 2: sine left parenthesis, "x" minus 1 , right parenthesis plus 1 left brace, "x" greater than 1 , right brace left brace, "x" less than 2.5 7 1 , right bracesinx−1+1x>1x<2.571
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Expression 3: "y" equals 2 left brace, "x" greater than or equal to 2.5 7 1 , right bracey=2x≥2.571