यदि \(f(x) = \left[ {\begin{array}{*{20}{c}} x&\lambda \\ {2\lambda }&x \end{array}} \right],then\,f(\lambda x) - f(x)\) निम्न के बराबर है?
1
\(x({\lambda ^2} - 1)\)
2
\({\lambda ^{^2}}({x^2} - 1)\)
3
\(\lambda ({x^2} - 1)\)
4
\({x^2}({\lambda } - 1)^2\)