JEE Main & Advanced
Mathematics
Functions
Question Bank
Numerical Value Type Questions - Function
question_answer
If \[f\left( x \right)=\cos \left( \log \,\,x \right),\]then find value of\[\frac{f\left( xy \right)+f\left( x/y \right)}{f\left( x \right)f\left( y \right)}\].