A coterminal axis angle
A coterminal axis angle
5 marks
TGM Original
Find the exact values of all six trigonometric functions at - 11 pi2. State any undefined values and identify the terminal quadrant or axis.
Solution:
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Answer:\(\sin\left(- \dfrac{11 \pi}{2}\right)=1\); \(\cos\left(- \dfrac{11 \pi}{2}\right)=0\); \(\tan\left(- \dfrac{11 \pi}{2}\right)=\text{undefined}\); \(\operatorname{cosec}\left(- \dfrac{11 \pi}{2}\right)=1\); \(\sec\left(- \dfrac{11 \pi}{2}\right)=\text{undefined}\); \(\cot\left(- \dfrac{11 \pi}{2}\right)=0\). Terminal positive vertical axis.
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