\(=\left(1^2+...+1000^2\right)\left(91-91\right)\)
\(=\left(1^2+...+1000^2\right)0\)
\(=0\)
(12+22+32+…10002) (91-273:3)
= ( ... ) . 0
=0
Ta có:
(12+22+32+…10002) (91-273:3)
= (12+22+32+…10002) (91-91)
=(12+22+32+…10002) .0
=0
Học tốt and HAND!!
k mk nhe