Trigonometrie nr.1

grad

radian

minut

secundă

$\frac{\pi}{2}$

$\pi$

$\frac{3\pi}{2}$

$2\pi$

$\frac{\pi}{2}$

$\pi$

$\frac{3\pi}{2}$

$2\pi$

$\frac{\pi}{2}$

$\pi$

$\frac{3\pi}{2}$

$2\pi$

 $\alpha=\frac{a^{\degree}}{180^{\degree}}\cdot\pi$  

 $a^{\degree}=\frac{\alpha}{\pi}\cdot180^{\degree}$  

 $a^{\degree}=\alpha\cdot180^{\degree}$  

 $\alpha=\frac{a^{\degree}}{180^{\degree}}\cdot\pi$  

 $a^{\degree}=\frac{\alpha}{\pi}\cdot180^{\degree}$  

 $a^{\degree}=\alpha\cdot180^{\degree}$  

cerc trigonometric

cerc orientat

cerc înscris

cerc circumsris

pozitiv

negativ

pozitiv

negativ

cadranului I

cadranului II

cadranului III

cadranului  IV