Question

. Calcule o valor das expressões numéricas a seguir. a) (–1)100 + (–1)101 – (–1)0 .√1
b) √64 –√25 + (–3)2 – (–2)3 – 1

Answer 1

a)-100-101+0=-201
b)8-5-6+6-1=8-6=2

Answer 2

a) (–1)100 + (–1)101 – (–1)0 .√1

  + 1 + (–1) – (1) .1 ==>  + 1 - 1 - 1 ==> - 1
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b) √64 –√25 + (–3)2 – (–2)3 – 1
 
8 - 5 + 9 - (-8) - 1 ==> 8 - 5 + 9 + 8 - 1 ==> 3 + 17 - 1 ==> 19