$1èreG$ Trigo

5 flashcards · Mathematics · by Clémence Poiron

1. sin(π6)=sin(\frac{\pi}{6})=sin(6π​)=

   sin(π6)=12sin(\frac{\pi}{6})= \frac{1}{2}sin(6π​)=21​

2. sin(π4)=sin(\frac{\pi}{4})=sin(4π​)=

   sin(π4)=22sin(\frac{\pi}{4})= \frac{\sqrt{2}}{2}sin(4π​)=22 ​​

3. sin(π3)=sin(\frac{\pi}{3})=sin(3π​)=

   sin(π3)=32sin(\frac{\pi}{3})= \frac{\sqrt{3}}{2}sin(3π​)=23 ​​

4. cos(π6)=cos(\frac{\pi}{6})=cos(6π​)=

   cos(π6)=32cos(\frac{\pi}{6})= \frac{\sqrt{3}}{2}cos(6π​)=23 ​​

5. cos(π3)=cos(\frac{\pi}{3})=cos(3π​)=

   cos(π3)=12cos(\frac{\pi}{3})= \frac{1}{2}cos(3π​)=21​