Mathematics - Application of Derivative Question with Solution | TestHub

$f(x)=\log \left(\frac{x^2+ab}{(a+b)x}\right)$ in $[a,b]$ (where $0<a<b$ )

$f(x)=(x-1)(2x-3)$ in [1 , 3]

$f(x)=2+(x-1{)}^{2/3}$ in $[0,2]$

$f(x)=\cos (1/x)$ in [-1, 1]