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How do you find excluded values for rational expressions?

Answer 1

Savannah Anderson

See below

Let our general rational expression be #f(x)/g(x) #

This expression is defined where #g(x) !=0# [Since we cannot divide by 0]

Hence, the excluded values are where #g(x) =0#

I hope this is useful.

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Answer 2

Ethan Adkins

To find excluded values for rational expressions, we need to identify the values that would make the denominator equal to zero. These values are excluded because division by zero is undefined. To find the excluded values, set the denominator equal to zero and solve the resulting equation. The solutions to this equation will be the excluded values for the rational expression.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.