real numbers, grade 10, question 17

27/01/2017 Grade 10 48

E = \frac{{\sqrt{\sqrt{{a^{12}}}}+\sqrt{\sqrt{{a^4}}}}}{{\sqrt{4{a^2}{b^2}}}}\times\frac{{\sqrt[3]{{8{a^3}{b^3}}}}}{{\sqrt[6]{{{a^6}}}}}

where a<0  and b < 0

  1. Simplify E.
  2. Solve E > 0 .