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Evaluate: `lim_(xrarr2) (x^(2)-4)/(x-2)` |
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Answer» `underset(xrarr2)"lim"(x^(2)-4)/(x-2)` `(x^(2)-4)/(x-4)=(0)/(0)` when x=2 (indeterminate form) `therefore underset(xrarr2)"lim"(x^(2)-4)/(x-2)=underset(xrarr2)("lim")((x-2)(x+2))/((x-2))` `-underset(xrarr2)("lim")(x+2)=2+2=4`. |
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