Toán tính tổng :S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000 14/07/2021 By Athena tính tổng :S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000
$S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000^{}$ ⇒$S=(2-4-6+8)+(10-12-14+16)+…..+(1994-1996-1998+2000)^{}$ ⇒ $S=0 + 0 + … + 0^{}$ ⇒ $S=0^{}$ Trả lời
$S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000$ $S= ( 2-4-6+8)+(10-12-14+16)+…..+(1994-1996-1998+2000)$ $S= 0+0+…+0$ $S=0$ Trả lời
$S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000^{}$
⇒$S=(2-4-6+8)+(10-12-14+16)+…..+(1994-1996-1998+2000)^{}$
⇒ $S=0 + 0 + … + 0^{}$
⇒ $S=0^{}$
$S=2-4-6+8+10-12-14+16+…..+1994-1996-1998+2000$
$S= ( 2-4-6+8)+(10-12-14+16)+…..+(1994-1996-1998+2000)$
$S= 0+0+…+0$
$S=0$