Expression 1: StartFraction, cos left parenthesis, "x" , right parenthesis Over 1 minus "x" , EndFraction left brace, negative 1 less than "x" less than 1 , right bracecosx1−x−1<x<1
1
Expression 2: 1 plus "x" plus 1 half "x" squared plus 1 half "x" cubed plus left parenthesis, 1 half plus StartFraction, 1 Over 4 ! , EndFraction , right parenthesis "x" to the 4th power left brace, negative 1 less than "x" less than 1 , right brace1+x+12x2+12x3+12+14!x4−1<x<1