real numbers, question 5, grade 10

28/06/2016 Grade 10 2,360

5) Reduce:

a)  \sqrt{{{\left({3-2\sqrt 2}\right)}^2}}-\root 4\of{{{\left({\sqrt 8-3}\right)}^4}}+\sqrt{\root 3\of{64}}

b)  \root 3\of{\root 4\of{\sqrt {{4^{12}}}}}

c) \sqrt {{a^2}{b^2}}+\root 4 \of{{a^4}{b^8}}-\root 6\of{{a^{12}}{b^{18}}}  where ( a>0 & b<0)