Find the value of

`( 1 + 1/x ) ( 1 + 1/( x+1 )) ( 1 + 1/( x+2 ) ) ( 1 + 1/( x+3 ))` is :

(1) `1 + (1/(x + 4 ))`

( 2 ) x +4

( 3 ) `1/x`

( 4 ) `( x+4 )/x`

Find the value of : ( x^(1/2 ) + x^(-1/2 ) ) times ( x^(1/4 ) + x^(-1/4 ) ) times ( x^(1/8 ) + x^(-1/8 ) ) times ( x^(1/8 ) - x^(-1/8 ) ) ( a ) x + 1/x ( b ) ( x^2 -1 )/x

Find the value of tan^(-1)((x-2)/(x-1))+tan^(-1)((x+2)/(x+1))=pi/4

(1) / (x + 1)-(2) / (x ^ (4) -x + 1) <(1-2x) / (x ^ (3) +1)

(3) / (x + 1) + (4) / (x-1) = (29) / (4x-1); x! = 1, -1, (1) / (4)

Find the coefficient of x^-1 in (1+3x^2+x^4)(1+ 1/x)^8

Find the sum of the series e^(x-(1)/(2)(x -1)^(2) + (1)/(3) (x -1)^(3) - (1)/(4) (x -1)^(4) + ...