# Given the following functions; u(x) = x^2+9 w(x) = #sqrt(x+8)# How does one determine (w#@#u)(8) and (u#@w#)(8)?

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To determine (w@u)(8) and (u@w)(8), you need to perform function composition. This involves substituting the function w into u and vice versa, then evaluating the resulting composite functions at the given value of x, which is 8 in this case.

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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.

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.

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.

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