F(x)=\left\{\begin{array}{c}{\frac{1-\cos x}{x^{2}}} & {, x \neq 0} \\ – InterviewSolution

1.	F(x)=\left\{\begin{array}{c}{\frac{1-\cos x}{x^{2}}} & {, x \neq 0} \\ {A} & {, x=0}\end{array}\right. F(x) \text { is continuous at } x=0
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