2009x2009x...x2009
=(2009x2009)x(2009x2009)x...x(2009x2009) x 2009 ( có 2015:2=1007 nhóm và dư 1 thừa số 2009 )
= (...1)x(...1)x...x(...1)x 2009
=(...9)
Vậy Tich cua 2015 so 2009 co chu so tan cung bang 9
Tick nha! Chúc học tốt
Tich cua 2009 so 2008 co chu so tan cung bang may ?
Tich cua 2015 so 2007 co chu so tan cung bang may ?
Tich cua 2015 so 2004 co chu so tan cung bang may?
Cho tich A la tich cua 2009 so 2008. Hoi A CO TAN CUNG LA CHU SO MAY
Cho biet A la tich 2008* 2008*2008*.........*2008( Co 2009 thua so 2008)
Hoi tich tren co tan cung la chu so may
cho T = 2x2x2x2x.....x2x2( tich cua 2013 thua so 2) . T co chu so tan cung la may
tich cua 9 nhan 19 nhan 29 ..................................nhan 1999 nhan 2009 co chu so tan cung la
tinh tong cua cac so co 2 chu so co tan cung bang 4
tich cua day 3 * 3 * 3 ..... * 3 ( co 2014 thua so 3 ) co chu so tan cung la bao nhieu
