1/root^3x + 1/rootx =1 x=?

Question

1307 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-08-08T14:57:30

#color(maroon)(x = (1 + 1/sqrt3)^2 = (1 + sqrt3)^2 / 3#

#1/(sqrt(3 x)) + 1 / sqrtx = 1#

#(sqrt x + sqrt(3x) ) / (sqrt (3x) * sqrt x) = 1#

#(sqrt3 + 1) * sqrt x = sqrt(3x^2)#

#sqrt((3x^2)/x) = sqrt3 + 1#

#sqrt(3x) = sqrt3 + 1#

sqrtx = (sqrt 3 + 1) / sqrt 3#

#color(maroon)(x = (1 + 1/sqrt3)^2 = (1 + sqrt3)^2 / 3#