Question

Tính tích P=(1-1/2)(1-1/3)(1-1/4)...(1-1/99)

Kato Kid nhanh nhé ! ^_^

Answer 1

P=1/2 * 2/3 *3/4 *....* 98/99

P=(1.2.3.4....98)/(2.3.4....99)

=> P=1/99

Đáp số: P=1/99

Answer 2

P = ( 1 - \(\frac{1}{2}\))(1 - \(\frac{1}{3}\))(1 - \(\frac{1}{4}\)) .... (1 - \(\frac{1}{99}\))

P = \(\frac{1}{2}\). \(\frac{2}{3}\). \(\frac{3}{4}\).  . . . . \(\frac{99}{100}\)

P = ( 1.2.3. ... . 99) : (2.3.4. ... .100)

P = 1 : 100

P = \(\frac{1}{100}\)

 Vậy ................

~~ học tốt ~~