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If f(x)={e^x+aforx<0x-3forxgeq0, i sd i...

If `f(x)={e^x+aforx<0x-3forxgeq0,` `i sd iffe r e n t i a b l ea t` `x=0,` then `' a '` equal to `-2` (2) `-3` `-4` (4) No such value exist

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