$\cos \theta$

$-\cos \theta$

$-\sin \theta$

$\sin \theta$

${360}^{°}$

${180}^{°}$

${720}^{°}$

${300}^{°}$

1

$2\pi$

-1

0

0

1

-1

2

$\sin \alpha \cos \beta - \cos \alpha \sin \beta$

$\sin \alpha \cos \beta + \cos \alpha \sin \beta$

$\cos \alpha \cos \beta - \cos \alpha \cos \beta$

$\cos \alpha \cos \beta + \cos \alpha \cos \beta$

${\cos }^2\alpha + {\sin }^2\alpha$

$-{\cos }^2\alpha - {\sin }^2\alpha$

${\sin }^2\alpha - {\cos }^2\alpha$

${\cos }^2\alpha - {\sin }^2\alpha$

1

0

2

-1

$\tan A$

$-\cot A$

$-\cot A$

$-\tan A$

0

$\frac{3}{2}$

1

$\frac{1}{4}$

$\sqrt{\frac{3}{2}}$

$\sqrt{\frac{2}{3}}$

$-\sqrt{\frac{3}{2}}$

$-\sqrt{\frac{2}{3}}$