Calculate the given derivative. Simplify the answer.
$\displaystyle \frac{d}{d%0}\left[%5\right]$
= BOX*
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$\displaystyle \frac{d}{d%6}\left[%11\right]$
= BOX*
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$\displaystyle \frac{d}{d%12}\left[%17\right]$
= BOX*
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$\displaystyle \frac{d}{d%18}\left[%23\right]$
= BOX*
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