November 2019 1 57 Report
A) (\frac{1}{3})^5. (\frac{1}{3}). (\frac{1}{3})^8: (\frac{1}{3})^9

b) [-(-\frac{1}{2})^{2}]^{-3}: [(-\frac{1}{2}).(-\frac{1}{2})^{5}.(-\frac{1}{2})^{-3}]

c) \left \{ {{2x+y=12} \atop {x+3y=11}} \right.

d) \left \{ {{x=5y} \atop {x+y=12}} \right.

e) \frac{1}{2}. \frac{2}{3}. \frac{3}{4}. \frac{4}{5}. \frac{5}{6}. \frac{6}{7}. \frac{7}{8}. \frac{8}{9}. \frac{9}{10}




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