Question

90+90=

1/2*1/3*1/4*1/5*1/6

Answer 1

90+90=1800

1/2*1/3*1/4*1/5*1/6=1/720

ai k mk mk k lai

Answer 2

90 + 90 = 90x2 = 180

1/2 x 1/3x1/4x1/5x1/6 =  1/720

Đáp số : a) 180 ; b) 1/720

Answer 3

90 + 90 = 90 x 2 = 180

\(\frac{1}{2}\cdot\frac{1}{3}\cdot\frac{1}{4}\cdot\frac{1}{5}\cdot\frac{1}{6}=\)\(\frac{1}{720}\)