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## xxzeke16 3 years ago find the exact values of six trigonometric functions of theta if theta is in standard position and P is on the terminal side. P(4,-3)

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1. anonymous

|dw:1360724297136:dw|

2. anonymous

you get the hypotenuse either by pythagoras $$h^2=3^2+4^2\implies h=5$$ or by remembering a 3 - 4 - 5 right triangle

3. anonymous

then use the appropriate ratios for example $\sin(\theta)=-\frac{3}{5}$ etc

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