Tính: \(A = \frac{{55}}{{11 \times 16}} + \frac{{55}}{{16 \times 21}} + \frac{{55}}{{26 \times 31}} + \frac{{55}}{{31 \times 36}} + \frac{{55}}{{36 \times 41}}\).
A.\(A = \frac{{42}}{{41}}\).
B.\(A = \frac{{41}}{{40}}\).
C.\(A = \frac{{40}}{{41}}\).
D.\(A = \frac{{43}}{{41}}\).
A.\(A = \frac{{42}}{{41}}\).
B.\(A = \frac{{41}}{{40}}\).
C.\(A = \frac{{40}}{{41}}\).
D.\(A = \frac{{43}}{{41}}\).
Loga
Hóa Học lớp 12
