นิพจน์ 5: "f" Subscript, "p" "r" "i" "m" "e" "M" "K" , Baseline left parenthesis, "x" , right parenthesis equals negative left parenthesis, "x" squared StartRoot, "x" squared plus 1 , EndRoot , right parenthesis to the negative 1st powerfprimeMKx=−x2x2+1−1
5
Second Derivative
6
นิพจน์ 7: "f" Subscript, "p" "r" "i" "m" "e" "p" "r" "i" "m" "e" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, "d" Over "d" "x" , EndFraction left parenthesis, "f" Subscript, "p" "r" "i" "m" "e" , Baseline left parenthesis, "x" , right parenthesis , right parenthesisfprimeprimex=ddxfprimex
7
นิพจน์ 8: "f" Subscript, "p" "r" "i" "m" "e" "p" "r" "i" "m" "e" "M" "K" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, 3 "x" squared plus 2 Over "x" cubed left parenthesis, "x" squared plus 1 , right parenthesis Superscript, 3 halves , Baseline , EndFractionfprimeprimeMKx=3x2+2x3x2+132
