In triangle \( \mathrm{ABC} \), if \( a=18, b=24 \) and \( c=30 \) ...

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In triangle \( \mathrm{ABC} \), if \( a=18, b=24 \) and \( c=30 \) then find
\[
\cos A, \cos B, \cos C
\]
\( \mathrm{P} \)
W
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