$\frac{7}{8}$

$\frac{8}{5}$

$\frac{5}{8}$

$\frac{8}{7}$

$2\sqrt{\tan }x +c$

$\sqrt{\tan }x \ln \left({\cos }^{2}x\right) +c$

$2\sqrt{tna}x=c$

$\frac{2}{3} (\tan x{)}^{3/2} +c$

e

e-1

1

1-e

$\tan \left(e^x\right) +c$

${\tan }^{-1}\left(e^x\right) +c$

${\tan }^{-1}(e^x+e^{-x})+c$

${\tan }^{-1}\left(e^{-x}\right) +c$

$\frac{{\mathrm{\pi }}^2}{8}$

$\frac{{\mathrm{\pi }}^2}{2}$

$\frac{\mathrm{\pi }}{8}$

$\frac{\mathrm{\pi }}{4}$

455

360

144

720

$\frac{224}{3^8}$

$-\frac{224}{3^8}$

$\frac{242}{3^8}$

$-\frac{242}{3^8}$

$x^2- 19x + 84 =0$

$x^2+ 14x -144 =0$

$x^2 - 14x + 144 = 0$

$x^2+19x -84 =0$

0

1

$\varpi$

${\varpi }^2$

-6,4

-4,6

-4,2

-2,4

-2i

2i

-2

2

$2n\mathrm{\pi }\pm \frac{\mathrm{\pi }}{2}$

$2\mathrm{n\pi }\pm \frac{\mathrm{\pi }}{3}$

$2\mathrm{n\pi }\pm \frac{\mathrm{\pi }}{4}$

$2\mathrm{n\pi }\pm \frac{\mathrm{\pi }}{4}$

$\pm \frac{5}{12}$

$\frac{25}{144}$

$\frac{13}{12}$

$\pm \frac{13}{12}$

$\frac{1}{2}abc$

$\frac{1}{2}(a-b)(b-c)(c-a)$

$\frac{1}{2}(b-1)(b-c)(c-a)$

3abc

3x + 2y =1

3x -2y =5

3x + 2y = 5

2x + 3y =1

$2(x^2+y^2)-8x-12y+17 =0$

$2(x^2+y^2)-6x-10y + 15=0$

$2(x^2+y^2)-4x-8y+11=0$

$2 (x^2+y^2)-2x-6y+7=0$

(4,4)

(-4,-4)

(4,-4)

(-4,4)

$\frac{8}{7}$

$\frac{7}{8}$

$\frac{8}{5}$

$\frac{5}{8}$

0

-1

1

1/2

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

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

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

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

$2^{//}$

$(\frac{2}{3}{)}^{//}$

$1^{//}$

$(\frac{1}{2}{)}^{//}$

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

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

$\frac{1}{2}$

1

$(\frac{8}{5},\frac{5}{2})\cup (\frac{3}{2},\frac{8}{6})$

$(\frac{7}{6},\frac{7}{2})\cup (\frac{7}{2},\frac{8}{3})$

$(\frac{7}{5},\frac{3}{2})\cup (\frac{3}{2},\frac{8}{5})$

$(\frac{8}{5},\frac{3}{2})\cup (\frac{3}{2},\frac{9}{7})$

1

-1

0

2

$\frac{2}{5}$

$\frac{5}{2}$

$\frac{3}{8}$

$\frac{8}{3}$

$\sqrt{x^2+4}$

$\frac{1}{1+\sqrt{x^2+4}}$

$1 +\sqrt{x^2+4}$

$\frac{1}{\sqrt{x^2+4}}$

$\frac{8}{11}$

$\frac{5}{11}$

$\frac{3}{11}$

$\frac{1}{11}$

$130°$

$120°$

$110°$

$100°$

11010110

10100110

10011100

11001001

(5,2)

(7,0)

(10,0)

(0,7)