Question

Resolva as expressões:
[0,333... - 18/54 + (√0,04)^-1 - 1] ×2


[205^0 - 1^205 + (√169 - 11)] × (√9/81)^-1

Answer 1

[0,333... - 18/54 + (√0,04)^-1 - 1] ×2

[3 - 18 + (2)^-1 - 1} x 2
 9    54    10

[3 - 18 + 10 - 1} x 2 ==> [18 - 18 + 270 - 54] x 2
 9    54     2

[ 216]x 2 ==> 432
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[205^0 - 1^205 + (√169 - 11)] × (√9/81)^-1

[ 1 - 1 + (13 - 11)] × (3/9)^-1 ==> 0 + 2(9/3) ==> 2.3 ==> 6