The value of `1+1/(4xx3)+1/(4xx3^2)+1/(4xx3^3)` is `(121)/(108)` (b) `3/2` (c) `(31)/2` (d) None of these

The value of (1)/(1xx2)+(1)/(2xx3)+(1)/(3xx4)+..... +(1)/(99xx100) is

(18xx14-6xx8)/(488-:4-20)=?(1)/(2)(b)(3)/(4)(c)2(d)4(e) None of these

[(1)/(1xx2)+(1)/(2xx3)+(1)/(3xx4)+,+(1)/(99xx100)]=

(3.5xx1.4)/(0.7)=?( a) 0.7(b)2.4(c)3.5(d)7.1 (e) None of these

The value of 1000[(1)/(1xx2)+(1)/(2xx3)+(1)/(3xx4)+cdots+(1)/(999xx1000)] is equal to

Value of 1+-: (1/2xx1/3)xx(2/3-:bar(1/4xx1/6+6))

The simplest value of (1)/(1xx2)+(1)/(2xx3)+(1)/(3xx4)+backslash+(1)/(9xx10) is (1)/(10) (b) (9)/(10) (c) 1 (d) 10