– Tính hợp lí 1+2-3-4+5+6-7-8+… – 299 – 300 +301 + 302 giúp mk vs ạ 17/07/2021 Bởi Athena – Tính hợp lí 1+2-3-4+5+6-7-8+… – 299 – 300 +301 + 302 giúp mk vs ạ
1+2-3-4+5+6-7-8+… – 299 – 300 +301 + 302 =1+(2-3-4+5)+(6-7-8+9)+…+(298-299-300+301)+302 =1+0+0+…+0+302 =1+302 =303 Bình luận
*Tính hợp lí $1+2-3-4+5+6-7-8+$… -$299 – 300 +301 + 302$ $=$$1$$+$($2-3-4+5$)$+$($6-7-8+9$)+…+($298-299-300+301$)+$302$ $=$$1+0+0$+…+$0+302$ $=$$1+302$ =$303$ Xin 5 sao + 1 tim + Ctlhn Bình luận
1+2-3-4+5+6-7-8+… – 299 – 300 +301 + 302
=1+(2-3-4+5)+(6-7-8+9)+…+(298-299-300+301)+302
=1+0+0+…+0+302
=1+302
=303
*Tính hợp lí
$1+2-3-4+5+6-7-8+$… -$299 – 300 +301 + 302$
$=$$1$$+$($2-3-4+5$)$+$($6-7-8+9$)+…+($298-299-300+301$)+$302$
$=$$1+0+0$+…+$0+302$
$=$$1+302$
=$303$
Xin 5 sao + 1 tim + Ctlhn