Các câu hỏi tương tự
Chung Minh Rang 1 + 1 khong bang 2
Cho tam giac ABC co goc A = 90o. M la trung diem cua BC . tren tia doi cua tia MA lay diem D sao cho MD = MA.
Hai tia phan giac cua goc ABC va goc ADC cat nhau tai K. Chung minh rang:
Goc BKD=BAD=BCD
Chung minh rang 0*0=0 mik tick cho
co 1 cau hoc tro den truong gap 1 con co mu hoi tai sao cau ay lai quay? tra loi dung minh ve kb voi minh
tai sao 1-1=2
Tai sao 1+1=2
1) co 1 nguoi gap nuoc thi chet. Tai sao nguoi do di tau , tau chim .Nguoi do khong chet
2) 1 nguoi di vao rung thay 1 con rua va 1 con ngua . Hoi tai sao nguoi do chay ve
3)6:2(2+1)=?
chung to rang 10^k -1 chia het cho19
a,10^2k -1 chia het cho19
b,10^3k -1 chia het cho19
tai sao 1+24=2