4

2

$\left|\begin{array}{cc}1& -2\\ 0& 1\end{array}\right|$

$\left|\begin{array}{cc}1& 2\\ 0& 1\end{array}\right|$

$(\sqrt{6} ,\pi /4)$

$(\sqrt{3} ,\pi /4)$

$(\sqrt{6} ,5\pi /4)$

$(6, -\pi 4)$

159

359

360

449

-1≤x≤0

-1≤x≤1

0≤x≤1

-1≤x≤0

${30}^{°}$

${45}^{°}$

${60}^{°}$

${90}^{°}$

3 : 4

2 : 3

1 : 2

4 : 3

π/2

π

যে কোনো বাস্তব সংখ্যা

$e^x(x-1)$

$e^x(x+1)$

$X{e}^x-1$

$1-X{e}^x$

140cm/sec

120 cm/sec

100cm/sec

80cm/sec

$\frac{12}{13}$

$\frac{7}{13}$

$\frac{13}{12}$

$\frac{5}{6}$

2;π/6

2;π/4

2;π/2

2;π/3

10/13

7/10

11/13

13/10

2

3

4

5

7/2

5/2

9/2

3/2

$\left(x+\frac{1}{x}\right)$

$2\left(x^2+\frac{1}{x^2}\right)$

$\frac{1}{2}\left(x^2+\frac{1}{x^2}\right)$

${\left(x+\frac{1}{x}\right)}^2$

${30}^{°}$

${60}^{°}$

${90}^{°}$

${120}^{°}$

$\frac{1}{2}$

$\frac{1}{\sqrt{2}}$

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

$-\frac{1}{2}$

20,000

9,000

15,000

10,000

6

7

3

9

3

4

5

6

(1, 0)

(0, 1)

(0, 0)

(1, 1)

48

54

60

66

$\sqrt{3}$

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

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

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

1

-1

∞

$1 + y^2$

$y^2$

$y\left(1 + y^2\right)$

$2y\left(1 + y^2\right)$

$\frac{1}{2}$

$\frac{1}{3}$

$\frac{2}{3}$

$\frac{3}{32}$

5

-5

19

-19

$\frac{\pi }{2}$

π

$\frac{\pi }{4}$

$\frac{\pi }{3}$

$1\frac{3}{4}$

$1\frac{3}{5}$

$1\frac{1}{4}$

$1\frac{1}{5}$