Question

1) calcule as potecias.  a) (2/3)² =   b) (4/7)² =   c) (7/5)² =   d) (1/3)² =   e) (5/3)² =   f) (7/30)° = h) (2/3)³ =    i) (1/5)³ =   j) (1/2)² =    m) (3/11)² =   n) (9/4)° =    o) (12/13)² =   q) (3/7)³ me ajudem pfv

Answer 1

$a)~~( \frac{2}{3} )^2= \frac{4}{9} \\ \\ b)~~( \frac{4}{7} )^2= \frac{16}{49} \\ \\ c)~~ (\frac{7}{5})^2= \frac{49}{25} \\ \\ d)~~( \frac{1}{3} )^2= \frac{1}{9} \\ \\ e)~~( \frac{5}{3} )^2= \frac{25}{9} \\ \\ f)~~( \frac{7}{30} )^0=1 \\ \\ h)~~( \frac{2}{3} )^3= \frac{8}{27} \\ \\ i)~~( \frac{1}{5} )^3= \frac{1}{125} \\ \\ j)~~( \frac{1}{2} )^2= \frac{1}{4} \\ \\ m)~~( \frac{3}{11} )^2= \frac{9}{121} \\ \\ n)~~ (\frac{9}{4} )^0=1 \\ \\ o)~~( \frac{12}{13} )^2= \frac{144}{169}$

$q)~~( \frac{3}{7} )^3= \frac{27}{343}$