4

-3

-5

1

-2

-1

$-\frac{1}{2}$

$\frac{1}{2}$

$\frac{4}{5}$

$\frac{8}{3}$

$\frac{8}{ 5}$

$\frac{7}{ 5}$

24

48

60

64

$-\frac{1}{2}$

$-\frac{1}{16}$

$\frac{1}{16}$

$\frac{1}{2}$

$-\frac{2}{3}$

$-\frac{1}{3}$

$\frac{1}{3}$

$\frac{2}{3}$

0

100

-100

140

cot t

-cot t

tan t

- tan t

5

3

-3

$\frac{5}{7}$

$-\frac{11}{2}$

$-\frac{1}{2}$

$\frac{1}{2}$

$\frac{11}{2}$

$\sin x =-\frac{1}{2}$

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

$\tan x =\frac{\sqrt{3}}{2}$

$\cos x = -\frac{\sqrt{3}}{2}$

$\frac{n\pi }{2}+(-1{)}^n \frac{\pi }{12}$

$\frac{n\mathrm{\pi }}{2}+(-1{)}^n\frac{\pi }{6}$

$n\pi +(-1{)}^n \frac{\pi }{12}$

$n\pi + (-1{)}^n\frac{\pi }{6}$

-2

2

-1

1

$\frac{x+4y}{2x}$

$\frac{x-2y}{x+2y}$

$\frac{6y-x}{2y-6x}$

$\frac{x-2y}{4y}$

x sin x + cos x

x sinx - cos x

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

$\frac{x^2}{2} \cos x + x\sin x$

$e^x \cos x$

$-e^x\cos x$

$e^x \sin x$

$-e^x\sin x$

$\frac{\pi }{3\sqrt{3}}$

$\frac{\pi }{\sqrt{3}}$

$\frac{\mathrm{\pi }}{9}$

$\frac{\mathrm{\pi }}{3}$

0

1

1-e

-1

2N

8 N

$\sqrt{34N}$

15 N

1 N, 2N, 4N

3N, 4N, 5N

10N, 20 N, 50 N

5N, 20 N, 80 N

$90°$

$30°$

$60°$

$45°$

$\frac{v^2\sin \alpha }{2g}$

$\frac{v^2{\sin }^2\alpha }{2g}$

$\frac{v\sin \alpha }{g }$

$\frac{v\sin \alpha }{2g}$

$30m{s}^{-1}$

$40 m{s}^{-1}$

$90 m{s}^{-1}$

$50m{s}^{-1}$

8m

18 m

4 m

32 m

0

100kg

150 kg

200 kg