$3<x<4$

$\frac{1}{9}>x>\frac{1}{10}$

$\frac{1}{9}<x<\frac{1}{6}$

$\frac{1}{3}<x<\frac{1}{2}$

$\mathrm{\pi }$

$2\mathrm{\pi }$

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

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

$\frac{\mathrm{\pi }}{6},\frac{\mathrm{\pi }}{3}$

$\frac{\mathrm{\pi }}{4},\frac{\mathrm{\pi }}{3}$

$\frac{\mathrm{\pi }}{3},\frac{\mathrm{\pi }}{5}$

$\frac{\mathrm{\pi }}{6},\frac{\mathrm{\pi }}{4}$

4

3

2

0

0

10

11

100

1

-1

-4

-5

495

4223

-1760

1760

$\underset{a.}{\to }\underset{b}{\to }=0$

$\underset{a}{\to }\wedge \underset{b}{\to }=0$

$(\underset{a}{\to }+\underset{b}{\to }).(\underset{a}{\to }-\underset{b}{\to })=0$

$(\underset{a}{\to }+\underset{b}{\to })\wedge (\underset{a}{\to }-\underset{b}{\to })$

$(\frac{3\sqrt{3}}{2},\frac{3}{2})$

$(\frac{3\sqrt{3}}{2},-\frac{3}{2})$

$(-\frac{3\sqrt{3}}{2},\frac{3}{2})$

$(-\frac{3\sqrt{3}}{2},-\frac{3}{2})$

1

$2\sqrt{2}$

3

4

$6\mathrm{\pi }$ বর্গ একক

$12\mathrm{\pi }$ বর্গ একক

$8\mathrm{\pi }$ বর্গ একক

$2\mathrm{\pi }$ বর্গ একক

$\frac{13}{17}$

$-\frac{13}{17}$

$\frac{17}{13}$

$-\frac{7}{13}$

2

5

-4

3

5x = 16

x =16

5x = 48

5x= $\pm 16$

$\frac{1}{x}$

xlogx + x

xlogx -x

x