$x^2-3x+1=0$

$x^2+3x+2=0$

$x^2-3x+2=0$

$x^2-3x-2=0$

5

8

10

${}^{16}C_{10}\times {}^{10}C_6\times {}^{6}C_4$

${}^{10}C_6\times {}^{6}C_4$

${}^{10}C_6+{}^{6}C_4$

কোনটিই নয়

$x^{n-1}$

$x^{n-1}$

$(\frac{1}{x}{)}^{n-1}$

$-(\frac{{\displaystyle 1}}{{\displaystyle x}}{)}^{n-1}$

4n+1

4n-2

(n-1)4

4n-3

$2\sin \frac{C+D}{2}\sin \frac{{\displaystyle C-D}}{{\displaystyle 2}}$

$2\sin \frac{{\displaystyle C+D}}{{\displaystyle 2}}\cos \frac{{\displaystyle C-D}}{{\displaystyle 2}}$

$2\cos \frac{{\displaystyle C+D}}{{\displaystyle 2}}\sin \frac{{\displaystyle C-D}}{{\displaystyle 2}}$

$2\sin \frac{{\displaystyle C+D}}{{\displaystyle 2}}\sin \frac{{\displaystyle D-C}}{{\displaystyle 2}}$

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

$\frac{{\displaystyle 1+x^2}}{{\displaystyle 1-x^2}}$

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

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

সমানুপাতিক

সাম্যাবস্থায়

অসাম্যাবস্থায়

কোনটিই নয়

5 N

10 N

300 N

150 N

9800 N

8800 N

780 N

(2,3)

(2,4)

(2,6)

কোনটিই নয়

(0,2)

(0,-2)

(2,0)

(-2,0)

${\tan }^{-1}\frac{-2}{3}$

${\tan }^{-1}\frac{2}{3}$

${\tan }^{-1}\frac{{\displaystyle 3}}{{\displaystyle 2}}$

কোনটিই নয়

2

4

8

1

${\sin }^{-1}x$

$co{t}^{-1}x$

$\cos e{c}^{-1}x$

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

5

$\frac{4}{5}$

$\frac{{\displaystyle 23}}{{\displaystyle 25}}$

$\frac{{\displaystyle 14}}{{\displaystyle 25}}$

$e^y-1$

$e^y$

$0$

$\infty$

4

5

6

7

সরলরেখা

বৃত্ত

পরাবৃত্ত

অধিবৃত্ত

20

12

8

1

11

10

9

8

sin A

cos A

sin 2A

cos 2A

20

120

66

220

$-13$

$\frac{6}{5}$

$-9$

$-19$

1

2

3

4