30/91 nha bạn nếu đúng cho mình
Các câu hỏi tương tự
Tim M biet
M=1/4+1/28+1/70+1/130
M co 30 so hang
tinh a = 1/2 + 1/4 + 1/8 + 1/16 + ... (biet tong tren co 10 so hang)
tinh tong 1+5+9+13+..............biet tong tren co 100 so hang
Tinh tong 1+5+9+13+........ Biet tong tren co 100 so hang
tinh tong 2+4+6+8...... biet tong do co 60 so hang tong cua 60 so hang la bao nhieu
Tinh tong A=1+4+7+10+....+x biet x la so hang thu 2016 cua tong
Tinh tong 2 + 4 + 6 + 8 + ...
Biet tong do co 60 so hang
Trong 1 vuon cay biet so hang cay bang so cay moi hang. Ban An tinh tong so cay trong vuon la 1 so co 3 chu so tan cung bang 7. Hoi ban An tinh dung hay sai?
tim a biet a=1/2+1/4+1/8+1/16+....[tong co 10 so hang]