" 1.यदि "x+sqrt(15)=4" Then "x+(1)/(x)=

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+(1)/(x)=(sqrt(2))/(3+sqrt(5)) then, x^(4)+(1)/(x^(4))

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

sqrt(x)+sqrt(5+x)=15/sqrt(5+x)

sqrt(x)+sqrt(5+x)=15/sqrt(5+x)

यदि x+(1)/(x)=sqrt(3) है तब x^(3)+(1)/(x^(3)) का मान होगा -