$f(x)=\frac{1+x^{2}+x^{4}}{x^{2}}$ হলে $\left(\frac{1}{x}\right)$ এর মান-

$\frac{1+x^{2}+x^{4}}{x^{2}}$

$\frac{1+x+x^{4}}{x^{2}}$

$\frac{1+x+x^{2}}{x^{2}}$

$\frac{1+x^{2}+x^{3}}{x^{4}}$