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Let f(x)={{:(cos[x]", "xle0),(|x|+a", ...

Let `f(x)={{:(cos[x]", "xle0),(|x|+a", "xgt0):}.` Then find the value of a, so that `lim_(xto0) f(x)` exists, where [x] denotes the greatest integer function less than or equal to x.

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CENGAGE PUBLICATION-LIMITS AND DERIVATIVES-All Questions
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