Biểu thức 8: left parenthesis, "x" , right parenthesis squared plus "y" squared equals 16.8 left brace, negative 1.5 less than "x" less than 1.5 , right bracex2+y2=16.8−1.5<x<1.5
8
Biểu thức 9: "C" equals rgb left parenthesis, "R" Subscript, 1 , Baseline , "G" Subscript, 1 , Baseline , "B" Subscript, 1 , Baseline , right parenthesisC=rgbR1,G1,B1