solve for for y when the absolute value of y3 13sqrt3 Solut
solve for for y when the absolute value of y^3 = 1/3sqrt3 .
Solution
y^3 = 1/3sqrt3
RHS 1/3sqrt3 = 1/(3*3^1/2) = 1/(3^(1+1/2) )
= 1/(3^3/2)
y^3 = 3^(-3/2)
Taking cube root on both sides:
(y^3)^1/3 = {3^(-3/2)}^1/3
y = 3^(-1/2)
= 1/3^1/2
y = + - 1/sqrt3
y = + - sqrt 3 / 3
