$n{x}^{n-1}+n{a}^{n-1}$

$n{x}^{n-1}+a^n$

$n{x}^{n-1}$

$n{x}^{n-1}+a^n\log n$

$\log (1+e^x)$

$\log (e^{-x}+1)$

$\frac{1}{ex}\log (1+e^{-x})$

$-\log (1+e^{-x})$

$90°$

$120°$

$45°$

$60°$

$\sqrt{8}$

$\sqrt{8h}$

$\sqrt{\frac{gh}{2}}$

$\sqrt{2gh}$

12

-15

3

15

$n\mathrm{\pi }\pm \frac{\mathrm{\pi }}{4}$

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

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

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

730

731

732

733

$4\mathrm{\pi }$

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

$2\mathrm{\pi }$

কোনোটিই নয়

x + c

${\mathrm{e}}^{\mathrm{x}}+\mathrm{c}$

${\tan }^{-1}\mathrm{x}+\mathrm{c}$

$\tan {\mathrm{e}}^{\mathrm{x}}+\mathrm{c}$

3

2

1

-1

$\mathrm{c} =\pm \mathrm{a}\sqrt{1+{\mathrm{m}}^2}$

$\mathrm{c} ={\mathrm{a}}^2\sqrt{1-{\mathrm{m}}^2}$

$\mathrm{c} =\mathrm{a}\sqrt{1-{\mathrm{m}}^2}$

$\mathrm{c} =\mathrm{a}\sqrt{1+{\mathrm{m}}^2}$

44%

40%

20%

100%

12N

24N

120N

60N

-a

a

cos a

cot a

$\frac{e^x}{x+1}$

$\frac{1n x}{1+x}$

$\frac{e^x}{x-1}$

$\frac{1n x}{1-x}$

2

$\frac{1}{2}$

কোনোটিই নয়

$\cos A=\frac{5}{13}$

$\cos A=-\frac{5}{13}$

$\cos A=\frac{12}{13}$

$\cos A=-\frac{12}{13}$

$-\frac{4}{3}$

1

2

a = b এবং c = 0

f = g এবং h = 0

a = b এবং h = 0

f = g এবং c = 0

$5{\mathrm{e}}^3-2{\mathrm{e}}^2$

$\mathrm{e}-2{\mathrm{e}}^2$

$5{\mathrm{e}}^3-1$