Exact expressions from cosine ratios

Exact expressions from cosine ratios

Secondary 2

3 marks

TGM Original Questions

If \(\cos y^\circ=8/17\), where \(y\) is acute, find \(\tan(90^\circ-y^\circ)\)[3]

Solution:

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Answer:\(\tan(90^\circ-y)=\dfrac8{15}\).

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