Evaluate the following value.
(i) If \( f(x)=x-9 \), find \( f(x)-f(-x) \).
(W)
(ii) If \( p(x)=...
Evaluate the following value.
(i) If \( f(x)=x-9 \), find \( f(x)-f(-x) \).
(W)
(ii) If \( p(x)=4 x^{5}-3 x^{4}-5 x^{3}+x^{2}-8 \), then find \( p(-1) \).
(iii) If \( q(x)=x^{3}+3 x^{2}+3 x+1 \), find
\[
q(-2)+q(-3)+q\left(\frac{1}{2}\right) \text {. }
\]
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