1

${\log }_{e}a$ns="http://www.w3.org/1998/Math/MathML">logea

${\log }_{a}e$

$\frac{1}{e}{\log }_{e}a$

9.8 সে.

10 সে.

98 সে.

100 সে.

4

6

8

10

120

140

160

180

$\frac{\sqrt{3}}{\sqrt{3}+1}$

$\frac{{\displaystyle \sqrt{3}+1}}{{\displaystyle \sqrt{3}}}$

$\frac{{\displaystyle \sqrt{3}+1}}{{\displaystyle \sqrt{3}}}$

$\frac{{\displaystyle \sqrt{3}+1}}{{\displaystyle 3}}$

(3, -4)

(-3, 4)

(-3, -4)

(3, 4)

1/2

1/5

2

5

110°

120°

150°

135°

$\frac{{\displaystyle {\log }_x}{\displaystyle e}}{x}$

$\frac{1}{xInx}$

$\frac{Inx}{x}$

$\frac{-1}{x(Inx{)}^2}$

$\left|2x-5\right|<3$

$\left|3-2x\right|<5$

$\left|3+2x\right|<-5$

$\left|3x+2\right|<2$

2

3

4

9

$x^2-2x-4=0$

$x^2+2x+6=0$

$x^2-2x+6=0$

কোনটিই নয়

560

570

580

600

28/27

27/28

495

π/2

π

π/7

π/3

$(2, \frac{\mathrm{\pi }}{3})$

$(2, \mathrm{\pi })$

$(2, \frac{\mathrm{\pi }}{6})$

$(2, \frac{4\mathrm{\pi }}{3})$

x+y=0

x-y=0

x+y+1=0

x+y=1

31/13

13/31

25/26

5/7

1110001

1110011

1100011

100100

$\frac{y^2+1}{1-2xy}$

$\frac{y^2-1}{1-2xy}$

$\frac{y^2+1}{2-2xy}$

$\frac{y^2-1}{-3xy}$

4,2

8.3

11.1

11.2

8

16

24

32

পরাবৃত্তের ক্ষেত্রে , e=1

উপবৃত্তের ক্ষেত্রে 0

অধিবৃত্তের ক্ষেত্রে e>1

সবকয়টি

5

10

15

25

$\sqrt{2}$

$\frac{1}{\sqrt{3}}$

$\sqrt{3}$

$\frac{1}{2}$