1.

p=sum_(n=0)^(oo) (x^(3n))/((3n)!) , q=sum_(n=1)^(oo) (x^(3n-2))/((3n-2)!), r = sum_(n=1)^(oo) (x^(3n-1))/((3n-1)!) then p + q + r =

Answer»

`E^x`
`e^(2X)`
`e^(3X)`
`e^(2)`

ANSWER :A


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