27

9

6

3

$3x+5y+1 =0$

$5x+3y+1 =0$

$2x+3y+2 =0$

$3x+2y+3=0$

$16\mathrm{\pi }$

$9\mathrm{\pi }$

$4\mathrm{\pi }$

$12\mathrm{\pi }$

$\frac{\pi }{6}$

$\pi$

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

1/2

$45°$

$90°$

$180°$

$0°$

$7 \times 7$$7 \times 7$

$5 \times 7$

$7 \times 5$

$5 \times 5$

$In\left(\frac{2}{3}\right)$

$In\left(\frac{4}{3}\right)$

$n\left(\frac{3}{2}\right)$

$In\left(\frac{3}{4}\right)$

$-se{c}^{2}x$

$\cos e{c}^{2}x$

$-\cos e{c}^{2}x$

$se{c}^{2}x$

$2n\pi \pm \frac{\mathrm{\pi }}{6}$

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

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

কোনটিই নয়

$y^2 = 4ax$

$x^2+y^2 = a^2$

$y^2 +4ax= 0$

$x^2+y^2 = a^2$

4

5

3

6

bc sin B

ab sin C

$\frac{1}{2} bc \sin B$

$\frac{1}{2} ab \sin B$

${\left(11\right)}_2$

${\left(10\right)}_2$

${\left(100\right)}_2$

${\left(101\right)}_2$

n- তম পদ

(n+1) তম পদ

$\left(\frac{n}{2}+1\right)$ তম পদ

(n-1) তম পদ

0

1

-1

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

2 cos x

- 2 cos x

- 2 sin x

2 sin x

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

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

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

কোনটিই নয়

$0$

1

2

$\sqrt{3}$

14

15

20

Try your self