" 11.Af "x=1+(1)/(1+(1)/(1+(1)/((1+(1)/(2)))))(1)/(81)," in "2x+(7)/(4)=4

(1)/(1+x)+(1)/(2)(1)/(1+x^((1)/(2)))+(1)/(4)+(1)/(1+(1)/(8))+

If (1 + (1)/(2)) (1 + (1)/(4)) (1+(1)/(6))(1+(1)/(8))(1-(1)/(3))(1-(1)/(5)) (1-(1)/(7))=1 +(1)/(x) then what is the value of x ?

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

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

(1)/(3)-(1)/(2).(1)/(9)+(1)/(3).(1)/(27)-(1)/(4).(1)/(81)+….oo=

Simplify :((-7)/(18)x(15)/(-7))-(1x(1)/(4))+((1)/(2)x(1)/(4))

If y=(1+x^((1)/(4)))(1+x^((1)/(2)))(1-x^((1)/(4))), then find (dy)/(dx).

(1)/(2) + (1)/(4) + (1)/(8) + (1)/(16) + ….. = x , (1)/(3) + (1)/(9) + (1)/(27) + (1)/(81) + … = y, then

(1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+....=x,(1)/(3)+(1)/(9)+(1)/(21)+(1)/(81)+...=y then 2x+4y=