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A melhor resposta!
2013-10-07T17:52:56-03:00
(-5)² - 4² + (1/5) ^{0}
         3 ^{-2} + 1

25 - 16 + 1
  1/9 + 1


10/10/9 = 10 . 9/10 = 90/10 = 9
7 3 7
  • Usuário do Brainly
2013-10-08T03:18:32-03:00
(-5)^2 - 4^2 + (1/5)^0
---------------------- =
( 3 )^-2 + 1

25 - 16 + 1
------------ =
1/9 + 1

10
-------- =
1/9 + 1

10 * 9/1 + 1 =
90/1 + 1 = 91