Question

( 1 - \(\dfrac{1}{2}\) ) x ( 1 - \(\dfrac{3}{5}\) ) x ( 1 - \(\dfrac{2}{7}\) ) x ( 1 - \(\dfrac{2}{9}\) ) 

 

Answer 1

( 1 - 1/2 ) x ( 1 - 3/5 ) x ( 1 - 2/7 ) x ( 1 - 2/9 )

= 1/2 x 2/5 x 5/7 x 7/9

= 1 x 2 x 5 x 7/2 x 5 x 7 x 9

= 1/9.

Answer 2

\(=\dfrac{1}{2}\times\dfrac{2}{5}\times\dfrac{5}{7}\times\dfrac{7}{9}\)

\(=\dfrac{1}{5}\times\dfrac{35}{63}\)

\(=\dfrac{35}{315}\)

\(=\dfrac{1}{9}\)

Answer 3