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Suppose |f^(prime)(x)f(x)f^(x)f^(prime)(...

Suppose `|f^(prime)(x)f(x)f^(x)f^(prime)(x)|=0"w h e r ef"("x")` is continuously differentiable function with `f^(prime)(x)!=0` and satisfies `f(0)=1` and `f^(prime)(0=2)` then `(lim)_(xvec0)(f(x)-1)/x` is `1//2` b. `1` c. `2` d. `0`

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