1.f(x)={1+3x2−cos2xx2,x≠0k,x=0f(x)=\begin{cases}\frac{1+3x^2-\cos2x}{x^2},&x\ne0\\k,&x=0\end{cases}f(x)={x21+3x2−cos2x,k,x=0x=0 cont at 000, k=k=k=a.1b.5c.6d.0Login to continueOnly logged in users canattempt or see the solution.
