Математика 200-230

$$\frac{1}{\left(2n-1n\right)\left(2n+1\right)}$$  

$$\frac{1}{\left(n-1\right)n}$$  

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

$$\frac{1}{\left(n-1\right)\left(n+1\right)}$$  

$$\frac{2n-1}{2^n}$$  

$$\frac{2n+1}{2^n}$$  

$$\frac{2n}{2^n}$$  

$$\frac{n-1}{2^n}$$  

$$\frac{2n}{\left(2n-1\right)!}$$  

$$\frac{2n}{\left(2n+1\right)!}$$  

$$\frac{2n}{\left(n-1\right)}$$  

$$\frac{2n}{\left(3n-1\right)}$$  

$$C_m^n=\frac{m!}{\left(m-n\right)!n!}$$  

$$C_m^n=\frac{m}{\left(m-n\right)!n!}$$  

$$C_m^n=\frac{m!}{\left(m-n\right)!n}$$  

$$C_m^n=\frac{m!}{\left(m+n\right)!n!}$$  

$$D(Х)=M\left(X^2\right)-\lfloor M\left(X\right)\rfloor^2$$  

D(Х)=0

$$D(Х)=\sum_{i=1}^nx^2iP_i$$  

$$D(Х)=\sum_{i=1}^nxiP_i$$  

С·М(х) 

М(х)

C

С+М(х) 

М(х)·М(у)

М(х)+М(у)

М(х)- М(у)

М(х-у)

М(х₁)·М(х₂)·…·М(х_п)

М(х₁)+М(х₂)+…+М(х_п)

М(х₁)-М(х₂)-…-М(х_п)

М(х₁₊х₂₊·…+х_п)

0

D

C

1

C² ·D(X)

C ·D(X)

D(X)

C²