Đề: Tính
(1 + 3 + 5 + ... + 2007 + 2009 + 2011) x (125125 x 127 - 127127 x 125)
= (1 + 3 + 5 + ... + 2007 + 2009 + 2011) x 0
= 0
(1+3+5+....+2007+2009+2011)×(15890875-15890875)
(1+3+5+.....+2007+2009+2011)×0
(1+3+5+.....+2007+2009+2011)
(1 + 3 + 5 + .... +2007 + 2009 + 2011 ) x (125125 x 127 - 127127 x 125 )
= ( 1 + 3 + 5 +..................+ 2007 + 2009 + 2011 ) x ( 15890875 - 15890875 )
= ( 1 + 3 + 5 +...................+ 2007 + 2009 + 2011 ) x 0
= 0
Chúc bạn học tốt!!!
Lèm luôn
( 1+3+5+ ... + 2007+2009+2011 ) x ( 125125 x 127 -127127 x 125)
= (1+3+5+ ... + 2007+2009+2011) x 0
= 0
(1+3+5+.....+2007+2009+2011)x(125125 x 127-127127x125)
=(1+3+5.....+2007+2009+2011)x0
=0
Hoktot
=( 1 + 3 + 5 + ............. + 2007 + 2009 + 2011 ) x 0
= 0
HỌC TỐT