Question

Problemele atasate exercitiul 4 punctul a si b

Answer 1

a) $[(-2 \frac{3}{4}:(- \frac{11}{8})-(+3 \frac{1}{2}): \frac{7}{4}] ^{2011 } =[(- \frac{3}{2}:(- \frac{11}{8} ) - \frac{3}{2}* \frac{4}{7}] ^{2011}$$= ( \frac{3}{2}* \frac{8}{11}-3* \frac{2}{7}) ^{2011}=(3* \frac{4}{11}- \frac{6}{7}) ^{2011}=( \frac{12}{11}- \frac{6}{7}) ^{2011}=( \frac{18}{77}) ^{2011}$$= \frac{ 18^{2011} }{ 77^{2011} }$