$4^A$

$3^A$

$2^A$

$1^A$

(1,2)

(2,1)

(0,1)

(1,3)

$\frac{1}{2}$

$\frac{1}{\sqrt{2}}$

$\frac{1}{2\sqrt{2}}$

$2\sqrt{2}$

${\sin }^{2}A$

$2{\sin }^{2}A$

${\cos }^{2}A$

$2{\cos }^{2}A$

$\frac{1}{x}{\sin }^{-1}\frac{x}{a}$

$\frac{1}{a}{\sin }^{-1}\frac{x}{a}$

$\frac{1}{x}{\sin }^{-1}\frac{a}{x}$

$\frac{1}{a}{\sin }^{-1}\frac{a}{x}$

-3

-2

2

3

2 (e-I)

2 (e+I)

2 (I-e)

(e+I)

${\cos }^{-1 }\frac{1}{4}$

${\cos }^{-1 }\frac{1}{2}$

${\cos }^{-1 }\frac{1}{3}$

${\cos }^{-1 }\frac{1}{5}$

$\tan \theta$

$\tan \frac{{\displaystyle \theta }}{2}$

$cot\theta$

$cot\frac{{\displaystyle \theta }}{2}$

$\frac{1}{2}$

$-\frac{1}{2}$

1

-1

3

4

5

6

$e^{\frac{a}{b}}$

$e^{\frac{b}{a}}$

$e^a$

$e^b$

$\frac{4}{9}$

$\frac{5}{9}$

$\frac{9}{4}$

$\frac{\mathrm{}}{7}$

$\frac{39}{5}$

$\frac{54}{7}$

$\frac{5}{39}$

$\frac{7}{54}$

$\frac{200}{g}$

$\frac{300}{g}$

$\frac{500}{g}$

$\frac{600}{g}$

$+\infty$

$-\infty$

1

-1

$30°$

$45°$

$60°$

$120°$

120

225

252

180

$\frac{\cos 2x}{2\sqrt{\sin 2x}}$

$\frac{\cos 2x}{\sqrt{\sin 2x}}$

$\frac{2}{\sqrt{\sin 2x}}$

$\frac{\tan 2x}{\sqrt{\sin 2x}}$

$3\sqrt{3}$

$2\sqrt{3}$

$\sqrt{3}$

$3\sqrt{2}$