tinh
(1-1/15)(1-1/21)(1-1/28)...(1-1/210)
a,tim x biet |x-2|+|3-2x|=2x+1
b,tim x,y thuoc Z biet xy+2x-y=5
c, tinh A=(1-1/15)(1-1/21)(1-1/28).....(1-1/210)
Tính A= (1-1/15).(1-1/21).(1-1/28)....(1-1/210)
Tính A = (1-1/15)*(1-1/21)*(1-1/28)*...*(1-1/210)
Tính kết quả A=(1-1/15)(1-1/21)(1-1/28)........(1-1/210)
(1-1/15) x (1-1/21) x(1-1/28) x...x (1-1/225)
giup minh voi nhe
cam on nhieu
minh can cach trinh bay luon nhe
Tính A=\(\left(1-\frac{1}{15}\right)\left(1-\frac{1}{21}\right)\left(1-\frac{1}{28}\right)...\left(1-\frac{1}{210}\right)\)
huong dan minh doi 1.(13) ra phan so moi neu ro cach lam
TÍNH A= \(\left(1-\frac{1}{15}\right)\left(1-\frac{1}{21}\right)\left(1-\frac{1}{28}\right)...\left(1-\frac{1}{210}\right)\)
