Find which of the function: 1- 2x x^2 ,& if x 0 5,&if x=0 at x = … - Vidyadip

Question

Find which of the function:
$\begin{cases}\frac{1-\cos2\text{x}}{\text{x}^2},&\text{ if x}\neq0\\5,&\text{if x}=0\end{cases}$
at x = 0

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