Problems from Limit of a function in a point

Calculate the limits of the following functions in the point $x = 1$ :

a) $f (x) = 0$

b) $f (x) = x^{3} - x^{2} + 1$

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a) $lim_{x \to 1} 0 = 0$

b) $lim_{x \to 1} x^{3} - x^{2} + 1 = 1 - 1 + 1 = 1$

a) The limit is $0$

b) The limit is $1$

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