[" 98.If "x+sqrt(15)=4" then "x+(1)/(x)=?],[" (A) "2]

If x+sqrt(15)=4, then x+(1)/(x)=2(b)4(c)8 (d) 1

If x+\ sqrt(15)=4, then x+1/x= (a)2 (b) 4 (c) 8 (d) 1

If x=sqrt(2+sqrt(2)), then x^(4)+(1)/(x^(4)) is

If x=4-sqrt15 find the value of x+1/x

If x = 4 +sqrt(15) . Find the value of x^(2) +(1)/(x^(2)) and x^(3) + ( 1)/(x^(3))

sqrt(x+1)-sqrt(x-1)=sqrt(4x-1)

If y=[x+sqrt(x^(2)-1)]^(15)+[x-sqrt(x^(2)-1)]^(15) then (x^(2)-1)(d^(2)y)/(dx^(2))+x(dy)/(dx) is eqaul to

If x=8 + 2sqrt(15) , then the value of sqrt(x) + 1/sqrt(x) is:

If x=4-sqrt(15), find the value of (sqrt(x)+(1)/(sqrt(x)))