4. TBQ - trigonometric ratios.

In \(\triangle PQR\), right-angled at \(Q\), \(PR + QR =  9\ cm\) and \(PQ = 3 \ cm\). Determine the values of \(sin \ P\), \(cos \ P\) and \(tan \ P\).
 
Answer:
 
\(sin \ P =\) ii
 
\(cos \ P =\) ii
 
\(tan \ P =\) ii
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