$\frac{1}{2} \left[\begin{array}{cc}2& 1\\ 0& 1\end{array}\right]$

$\frac{1}{2} \left[\begin{array}{cc}-1& 0\\ 1& -2\end{array}\right]$

$\frac{1}{2} \left[\begin{array}{cc}-1& 1\\ 0& -2\end{array}\right]$

$\frac{1}{2} \left[\begin{array}{cc}-1& -1\\ 0& -2\end{array}\right]$

-4

-8

4

8

$\overrightarrow{A} \overrightarrow{B }= 0$

$\overrightarrow{A}\times \overrightarrow{B }= 0$

$\nabla (\overrightarrow{A}+ \overrightarrow{B })= 0$

$\nabla \times (\overrightarrow{A}+ \overrightarrow{B })= 0$

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

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

$\left(2,\frac{5\mathrm{\pi }}{3}\right)$

$\left(1,\frac{4\mathrm{\pi }}{3}\right)$

3x+4y+1 = 0

3x+4y-1=0

3x-4y+3 = 0

3x-4y+11 = 0

-20

20

16

4

180

90

240

360

${}^{n+1}C_r$

${}^{n+1}C_{r+1}$

${}^{n}C_{r+1}$

${}^{n+1}C_{r-1}$

$\frac{5}{22}$

$\frac{7}{22}$

$\frac{7}{25}$

$\frac{22}{7}$

${\tan }^{-1}\left(\frac{4}{3}\right)$

${\tan }^{-1}1$

${\tan }^{-1}\left(\frac{1}{2}\right)$

${\tan }^{-1}\left(\frac{3}{4}\right)$

$x\ge -8$

$x\le -8$

$x\ge 8$

$x\le 8$

$-3\le \times \le +3$

$-4\le \times \le -3$

$-4\le \times \le 3$

$-3\le \times \le 3$

$0$

$-\frac{1}{6}$

$\frac{1}{3}$

$\frac{1}{6}$

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

$\frac{1}{x}$

$\frac{1}{2x}$

$\frac{1}{x^2}$

36

42

38

44

- cotx + c

tanx + c

secx + c

$se{c}^2 x + c$

$0$

2

-2

1

$\left(-\infty ,\infty \right)$

$\left(0,\infty \right)$

$[0,\infty )$

$[-\infty ,0)$

5

1

$0$

2

-1

1

-i

i

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

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

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

$\frac{{\displaystyle \mathrm{\pi }}}{{\displaystyle 5}}$

$y = \underline{+} x$

$y = \underline{+}\frac{1}{2} x$

$y = \underline{+} 2x$

$y = 0$

${}^{16}C_8$

${}^{16}C_8{x}^8$

${}^{16}C_9{x}^5$

${}^{16}C_9{x}^2$

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

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

$2x{e}^{x^2}$

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

$\frac{3}{8}$

$\frac{8}{3}$

$\frac{9}{2}$

$9$

$\pi$

$\frac{\pi }{2}$

$\frac{\pi }{3}$

$\frac{\pi }{4}$

$\frac{n\pi }{12}$

$\frac{n\pi }{4}$

$\frac{n\pi }{3}$

$\frac{n\pi }{5}$

2 N

3 N

4 N

5 N

ভূপৃষ্ঠে

মেরু অঞ্চলে

সমুদ্রে

পাহাড়ের চূড়ায়

$\frac{1}{6}$

$\frac{1}{36}$

$\frac{5}{36}$

$\frac{7}{36}$