Question

Tính nhanh

C=(1/2+1).(1/3+1).(1/4+1).....(1/99+1)

 

Answer 1

\(C=\left(\frac{1}{2}+1\right).\left(\frac{1}{3}+1\right).\left(\frac{1}{4}+1\right).....\left(\frac{1}{99}+1\right)\)

\(=\frac{3}{2}.\frac{4}{3}.\frac{5}{4}.......\frac{100}{99}=\frac{3.4.5....100}{2.3.4....99}=\frac{100}{2}=50\)

Vậy C=50

Answer 2

sao C= 50 dc

Answer 3

\(C=\frac{3}{2}.\frac{4}{3}.\frac{5}{4}........\frac{100}{99}\)

  \(=\frac{100}{2}=50\)

Answer 4

C = (1/2 + 1).(1/3 + 1).(1/4 + 1)...(1/99 + 1)

C = 3/2 . 4/3 . 5/4 ... 100/99

C = 100/2 = 50

Ủng hộ mk nha ♡_♡^_-

Answer 5

ai trả lời tui cái

trả lời tui k cho. please

Answer 6

sao tinh dc nhanh như z

sao C= dc 50 nhan như z

Answer 7

giai thik rõ ràng hơn dc ko

Answer 8

văn anh gà