limit as x approaches 2 of x^2f(x)

解答

x \to 2 lim (x^{2} f (x))

4 f (2)

求解步骤

x \to 2 lim (x^{2} f (x))

Plug in the value

x = 2

, assuming the function is continuous at this point

= 2^{2} f (2)

化简

= 4 f (2)

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