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

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

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

$\frac{{\displaystyle \mathrm{\pi }}}{{\displaystyle 6}}$

$2n^3+2n^2+n$

$2n^2+2n$

2n+1

$2n^2+2n+1$

3

10

15

20

6

4

2

1

220

200

120

100

$\sqrt{\frac{40}{3}}$

$\frac{40}{3}$

$\frac{\sqrt{40}}{3}$

$\frac{40}{9}$

20°

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

$\frac{\mathrm{\pi }}{9}$

$\frac{\mathrm{\pi }}{12}$

(3,60°)

(2,90°)

(3,90°)

(2,120°)

13

14

10

11

$-$31

19

A ও B উভয়ই

কোনটিই নয়

3.2N

2.5N

3.5N

2.0N

58.8 মিটার

48.8 মিটার

68.8 মিটার

78.8 মিটার

$x^3 \cos x + 3x^2\sin x$

$3x^3 \cos x + 3x^2\sin x$

$3x \cos x + 3x^2\sin x$

কোনোটিই নয়

40 মিঃ/সেঃ

42 মিঃ/সেঃ

45 মিঃ/সেঃ

60 মিঃ/সেঃ

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

$\frac{1- {\tan }^2 }{1+{\tan }^2 A}$

$\frac{{\tan }^2 A - 1}{{\tan }^2 A + 1}$

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