`1+(1)/(1+(1)/(1+(1)/(9)))=`

The value of: [(5/7 " of " 1 (3)/(8) " of " 6/7)] div [1-(1)/(7) xx ( 5/12 +(1)/(3)) ] xx ((1)/(7) -(1)/(9))/((1)/(7) +(1)/(9))

1(1)/(3)+2(1)/(6)-3(1)/(9)=1div?

If quad lim_(n rarr oo)(1-(1)/(4))(1-(1)/(9))(1-(1)/(16))...(1-(1)/(n^(2)));n>=1 then (1)/(P) is equal to

(1) / (2x-3) + (1) / (x-5) = 1 (1) / (9)

The product of the 9 fractions (1-(1)/(2))(1-(1)/(3))(1-(1)/(4))dots(1-(1)/(10))=