Question

Tính nhanh 

(1+2+3+4........+2017). (13.33-39.11)

 Trả lời giùm mk nhé mấy bạn mk đag rát gấp

 

Answer 1

   ( 1 + 2 + 3 + 4 + ... + 2017 ) . ( 13 . 33 - 39 . 11 )

= ( 1 + 2 + 3 + 4 + ... + 2017 ) . (  429     -    429   )

= ( 1 + 2 + 3 + 4 + ... + 2017 ) .         0 

= 0

k mk nha

Answer 2

=(1+2+3+4+.....+2017).[(13.3)x11-39.11)]

=(1+2+3+.........+2017).[39x(11-11)]

=(1+2+3+......+2017).[39x0]

=(1+2+3+......+2017)x0

=0

Answer 3

2 bạn ơi trả lời cho mình câu trên với 

Answer 4

(1+2+3+...+2017)x(13x33—39x11)

=(1+2+3+...+2017)x(39x11—39x11)

=(1+2+3+....+2017)x0

=0

Answer 5

\(\left(1+2+3+4+...+2017\right).\left(13.33-39.11\right)\)

\(=\left(1+2+3+4+...+2017\right).\left(429-429\right)\)

\(=\left(1+2+3+4+...+2017\right).0\)

\(=0\)