Dũng sai bét ha ha        

Hunter of Death sai bét tè lè nhè ha ha ha

sai đầu bài rùi

Có 139 139. 133 - 133133.139 = 1001.139.133 – 1001.133.139 = 0

=> (139 139. 133 - 133 133.139) : (2 + 4 + 6 + ... + 2002) = 0

dấu chấm là gì

\(f_{\left(x\right)}=x^6-2002x^5+2002x^4-2002x^3+2002x^2-2002x+2006\)

\(=x^6-\left(x+1\right)x^5+\left(x+1\right)x^4-\left(x+1\right)x^3+\left(x+1\right)x^2-\left(x+1\right)x+x+5\)

\(=x^6-x^6-x^5+x^5+x^4-x^4-x^3+x^3+x^2-x^2-x+x+5\)

\(=5\)

Vậy \(f_{\left(x\right)}=5\)Tại x = 2001

Lạ OLM ghê làm sai mà vẫn được k ???

Ta có : x=2001 \(\Rightarrow\)x+1=2002

\(F\left(x\right)=x^6-\left(x-1\right).x^5+\left(x-1\right).x^4-\left(x-1\right).x^3+\left(x-1\right).x^2-\left(x-1\right).x+2006\)

\(F\left(x\right)=x^6-x^6-x^5+x^5+x^4-x^4-x^3+x^3+x^2-x^2-x+2006\)

\(F\left(2001\right)=-2001+2006=5\)

 (139139.133-133133.139).(2+4+6+8+⋯+2002)=0

tick nha

A=(2-4-6+8)+(10-12-14+16)+...+(2002-2004-2006+2008)

A=0+0+0+...+0

A=0

ai k cho mình thì mình k lại

A=(2-4-6+8)+(10-12-14+16)+...+(2002-2004-2006+2008)

A=0+0+...+0=0

mk k bn vu thi nhu quynh roi day

S = 1 + 2 - 3 - 4 + 5 + 6 - 7 - 8 + 9 + 10 - ...... + 1998 - 1999 - 2000 + 2001 + 2002

S = 1 + (2 - 3 - 4 + 5 )+ (6 - 7 - 8 + 9) + (10 - ...... + (1998 - 1999 - 2000 + 2001) + 2002

S=1+0+0...+0+2002

S= 1+2002

S=2003

Lời giải:

$S=(1+2-3-4)+(5+6-7-8)+(9+10-11-12)+...+(1997+1998-1999-2000)+2001+2002$

$=\underbrace{(-4)+(-4)+....+(-4)}_{500}+2001+2002$

$=(-4).500+2001+2002=2003$