1

-4

9

y=2

x=-5

f(x)=0

$x^2+y^2=16$

√32

3.251251....

4.25

11/3

$0!=1$

$1!=1$

${}^{n}C_r\times r!={}^{n}P_r$

${}^{n}C_r=\frac{n!}{(n-r)!}$

1

0°

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

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

$\mathrm{\pi },2\mathrm{\pi }$

$\frac{\mathrm{\pi }}{2},\frac{5\mathrm{\pi }}{2}$

$\frac{3\mathrm{\pi }}{2},\frac{\mathrm{\pi }}{6}$

$\frac{7\mathrm{\pi }}{3},\frac{3\mathrm{\pi }}{2}$

$(1-x^2)y^2+x{y}_1+y=0$

$(1-x^2)y_2-x{y}_1=2$

$(1-x^2)y_2-x{y}_1+2=0$

$(1-x^2)y_1-x{y}_2=0$

$\tan \frac{\theta }{2}$

$cot\frac{{\displaystyle \theta }}{{\displaystyle 2}}$

$\sin \frac{{\displaystyle \theta }}{{\displaystyle 2}}$

$\cos \frac{{\displaystyle \theta }}{{\displaystyle 2}}$

$\frac{x^2}{5}+\frac{y^2}{6}=1$

$\frac{x^2}{16}+\frac{y^2}{9}=1$

$\frac{x^2}{24}=3y$

$x^2-3y^2-2x-8=0$

বৃত্ত

বিন্দু

সরলরেখা

পরাবৃত্ত

0°

1

2

5

0°

1

2

3

0°

30

60

90

0°

1

2

∞

$\frac{1}{3}In\left|x^2+1\right|$

$In\left|x^2+1\right|$

$\frac{1}{3}In\left|x^3+1\right|$

$In\left|x^3+1\right|$

0°

1

দ্বিগুন

অর্ধেক

0°

1

2

-1

B

$\varnothing$

{$\varnothing$}

$(A\cap B)$

1

-1

2

0°

$n+{}^{1}C_r$

${}^{n}C_{r+1}$

${}^{r}C_n$

${}^{r}C_{r+1}$

10

11

0°

15

1110011

1100011

1010101

10001111

$\frac{1}{2555}$

$\frac{1}{5255}$

$\frac{1}{5200}$

$\frac{1}{5525}$

$a^2+b^2$

$\sqrt{a^2+b^2}$

$ab$

$a^2{b}^2$

f(x)

x

1/x

f(y)