Evaluate the limit $\lim_{x\to0}\left(\frac{1-\cos\left(x\right)}{x^2}\right)$ by replacing all occurrences of $x$ by $0$
Calculate the power $0^2$
The cosine of $0$ equals $1$
Multiply $-1$ times $1$
Subtract the values $1$ and $-1$
$\frac{0}{0}$ represents an indeterminate form
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