Find `7-:5(1)/(3)`

Find 7 xx (1)/(3)

Find: 7-:3.5

Find 7xx(1)/(3)

Find: 7div5"" 1/3

Find: 7xx1/3

Find the following. 6xx5(1)/(7)

Find 3 div (5)/(7)

Find 5 div 3(4)/(7)

Assertion (A) : (1)/(5)+(1)/(3.5^(3))+(1)/(5.5^(5))+(1)/(7.5^(7))+…(1)/(2)log((3)/(2)) Reason (R ) : If |x| lt 1 then log_(e )((1+x)/(1-x))=2(x+(x^(3))/(3)+(x^(5))/(5)+…)

The sum of the series (1)/(1.3.5)+(1)/(3.5.7)+(1)/(5.7.9)+... is