f(x) = [tex]\frac{1}{x^{2} - 3 }[/tex]
f(3) = [tex]\frac{1}{9^{2} - 3 }[/tex]
= [tex]\frac{1}{81 - 3 }[/tex]
= [tex]\frac{1}{78}[/tex]
f(2 + h) = [tex]\frac{1}{(2 + h)^{2} - 3 }[/tex]
= [tex]\frac{1}{4 + 4h + h^{2} - 3 }[/tex]
= [tex]\frac{1}{1 + 4h + h^{2}}[/tex]
