(1-3⼀2*4)*(1-3⼀3*5)*(1-3⼀4*6)(1-3⼀5*7)```*(1-3⼀96-98)*(1-3⼀97*99)

(1-3/2*4)*(1-3/3*5)*(1-3/4*6)(1-3/5*7)```*(1-3/96-98)*(1-3/97*99)=
2025-12-16 23:37:28
推荐回答(1个)
回答1:

题目中的(1-3/96-98)应该是(1-3/96*98),那么:
(1-3/2*4)*(1-3/3*5)*(1-3/4*6)(1-3/5*7)```*(1-3/96*98)*(1-3/97*99)
=(1*5/(2*4)) * (2*6/(3*5)) * (3*7/(4*6)) * (4*8/(5*7)) *...* (95*99/(96*98)) * (96*100/(97*99))
=(1/4) * (100/97)
=100/388