(12, 9)

(9, 12)

(12, 7)

(9, 7)

p-q-1=0

p+q+1=0

p+q-1=0

p-q+1=0

6

8

9

12

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

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

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

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

$f^{-1}\left\{0\right\} = \{i, -i\}$

$f^{-1}\left(0\right) = \{\varnothing \}$

$f^{-1}\left(0\right) = \varnothing$

কোনোটিই নয়

$\frac{9!}{2!2!}$

$9!$

${}^9{P}_4$

কোনটিই নয়

$\frac{1}{2}$

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

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

1

35

50

70

105

59x -59y+42=0

58x-61y+42=0

58x+59y+42=0

58x+61y+42=0

$\sqrt{3}$

$\frac{\sqrt{3}}{2}$

1

-1

$6^2-1$

$5^2-1$

$2^6-1$

$2^5-1$

রেঞ্জ f = B

রেঞ্জ $f \subset B$

রেঞ্জ f = A

রেঞ্জ $f\subseteq B$

2

$\sqrt{2}$

$2\sqrt{2}$

কোনটিই নয়

$\frac{1}{2}$

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

$\sqrt{2}$

2

${\cos }^{-1}(-\frac{1}{30})$

${\cos }^{-1}(-\frac{1}{15})$

${\cos }^{-1}\left(\frac{1}{15}\right)$

${\cos }^{-1}\left(\frac{1}{30}\right)$

$\frac{2\sqrt{3}}{\sqrt{7}}$

$\frac{\sqrt{3}}{2\sqrt{7}}$

$\frac{-2\sqrt{3}}{\sqrt{7}}$

$-\frac{\sqrt{3}}{2\sqrt{7}}$

$\sqrt{1+x^2}$

x

$\sqrt{x}$

$\frac{1}{\sqrt{x}}$

${60}^0$

${90}^0$

${120}^0$

${180}^0$

$\frac{8v^2}{5g}$

$\frac{v^2}{5g}$

$\frac{2v^2}{5g}$

$\frac{4v^2}{5g}$

$R = 4\sqrt{hh\text{'}}$

$R = \sqrt{hh\text{'}}$

$R^2 = 4\sqrt{hh\text{'}}$

$R = 4hh\text{'}$

${\tan }^{-1}e-\frac{\mathrm{\pi }}{4}$

${\tan }^{-1}e+\frac{\mathrm{\pi }}{4}$

${\tan }^{1}e\frac{\mathrm{\pi }}{4}$

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

x

t

1

অনির্ণেয়

$\hat{a}$

$\frac{1}{\hat{a}}$

$\frac{1}{2}\hat{a}$

কোনোটিই নয়

$P:Q:R = \sqrt{2}:1:2$

$P:Q:R = 2:1:\sqrt{2}$

$P:Q:R = 3:1:\sqrt{2}$

$P:Q:R = \sqrt{3}:1:2$