If f(x)=(4+x)^(n),"n" epsilonN and f^(r)...

If `f(x)=(4+x)^(n),"n" epsilonN` and `f^(r)(0)` represents the `r^(th)` derivative of `f(x)` at `x=0`, then the value of `sum_(r=0)^(oo)((f^(r)(0)))/(r!)` is equal to

`2 ^(n)`

`3 ^(n)`

`5 ^(n)`

`4 ^(n)`

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VK JAISWAL-CONTINUITY, DIFFERENTIABILITY AND DIFFERENTIATION-EXERCISE (SUBJECTIVE TYPE PROBLEMS)

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