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Stating the trigonometric ratios

Stating the trigonometric ratios

TGM Original

In triangle \(ABC\), \(AC=3\) cm, \(AB=4\) cm and \(BC=5\) cm.
Given that angle \(BAC=90{}^\circ \), state the value of

  1. \(\sin \angle ACB\),
  2. \(\cos \angle ACB\),
  3. \(\tan \angle ACB\),
  4. \(\sin \angle CBA\),
  5. \(\cos \angle CBA\),
  6. \(\tan \angle CBA\).

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Answer:(i) \(\frac{4}{5}\) (ii) \(\frac{3}{5}\) (iii) \(\frac{4}{3}\) (iv) \(\frac{3}{5}\) (v) \(\frac{4}{5}\) (vi) \(\frac{3}{4}\)

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