If `sqrt21=4.582`, find the value of `sqrt(3/7)`

Find the value of sqrt(13+sqrt(7+(sqrt4)))

If x=7+4sqrt(3), then find the value of sqrt(x)+(1)/(sqrt(x))

If x=7+4sqrt(3), then find the value of sqrt(x)+(1)/(sqrt(x))

Find the value of sqrt(7sqrt(7sqrt(7))) .

If sqrt(2)=1*4 and sqrt(3)=1*7 , find the value of 1/(sqrt(3)-sqrt(2)) , correct to one place of decimal.

Find the value of (1)/((sqrt(4)-sqrt(3)))

if a=7-4sqrt(3), find the value of sqrt(a)+(1)/(sqrt(a))

If x=7-4sqrt(3) then find the value of sqrt(x)+(1)/(sqrt(x))